Cobalt Drill Bits
Cobalt drill bits are specially designed for drilling through hard metals. They are made with a cobalt alloy which gives them their strength and durability.
The most common cobalt alloys used in drill bits are 5% (M35) and 8% (M42). The higher the cobalt content, the harder the metal the drill bit can penetrate.
However, cobalt drill bits are more brittle than those made with other materials. For this reason, they are not recommended for use on softer metals or on materials that require a lot of force to drill through. When used properly, however, cobalt drill bits will provide a long-lasting and durable solution for your drilling needs.
Tenyu Cobalt Drill Bits Video
Why Tenyu
Cobalt Drill Bits
Unrelenting Customer Support We never get tired of giving our clients the support and assistance they need! Do you have a question before the sale? Do you yearn to learn more about our lineup of taper length drill bits and can’t decide which one to go with? Contact us and we’ll answer all your questions and concerns!
Expertise and Professionalism Our employees all have a combined experience amounting to 70 years in blacksmithing and in toolmaking. We’re sure that we’ll be able to produce the exact taper length drill bits you need for your business!
Progressiveness and Flexibility Tenyu Tools Co., Ltd. breeds on new products and we you will never have any trouble if you want to innovate or be different compared to other suppliers and manufacturers in the industry. In terms of creativity, you can absolutely count on us!
Swift and Fast Delivery With Tenyu Tools Co., Ltd., you’ll never have a problem when it comes to delivery. We’re known for lightning-speed delivery. Thanks to our partnerships with some of the country’s top courier, as well as freight and cargo services, we can get you the orders in less than two (2) months!
Quality, safety and cost efficiency are our commitments .We are sincere partner to all our clients, irrespective of their sizes. All over the world.
Features and Specs of Our Cobalt Drill Bits
Material | Cobalt Available: M35(Cobalt 5%) M42 (Cobalt 8%) |
Processes | Rolled, Fully Ground |
Sizes Available | 0.2mm to 13mm, 1/16 inches to 1 inch |
Shank Type | Hex Shank, Reduced Shank, Tapered Shank, Tri-Flat Sank, Double R Hex Shank |
Flute Type | Regular Flute, Parabolic Flute, Heavy Duty Web Flute, Thick Web With Parabolic Flute |
Surface Finishing | Black Oxide Coating, Amber Color Coating |
NOTE: These aren’t the only things our cobalt drill bits have. You will be able to find more than these! We’ll be unraveling those when you experience working with us.
What is Cobalt Drill Bits Good for?
Cobalt drill bits are good for many things. They are good for drilling through tough metals, and they are good for making very precise holes.
Cobalt drill bits are also good for drilling through wood and plastics. cobalt drill bits are made of cobalt steel, which is a stronger type of steel than the kind that is used to make regular drill bits. The cobalt makes the drill bit more expensive, but it also makes the drill bit last longer.
Cobalt Drill Bits for Hard Metal Drilling
Is Cobalt the Hardest Drill Bit?
Cobalt drill bits are made of a cobalt steel alloy with 5-8% cobalt content. This cobalt makes the steel harder, tougher, and more heat resistant than other types of drill bits.
The increased hardness means that cobalt drill bits can drill through tougher materials, such as stainless steel and cast iron. They are also less likely to break or wear down during extended use.
While cobalt drill bits are more expensive than other types of drill bits, they can provide superior performance and longer lasting results. For these reasons, cobalt drill bits are often the preferred choice for professional applications.
Cobalt Morse Taper Shank Drill Bits
Is Cobalt or Titanium Drill Bits Better?
Cobalt drill bits are made with a steel alloy that contains cobalt. The cobalt content makes the steel harder, allowing the bit to retain its sharpness for a longer period of time. Titanium drill bits are also made with a steel alloy, but the titanium content makes the steel much more durable. As a result, titanium drill bits will last longer than cobalt drill bits, but they will also be more expensive.
Cobalt Drill Vs Titanium Drill Bits
What Drill Bits are Stronger than Cobalt?
Cobalt drill bits are known for their strength and durability. But what other drill bits are out there that are just as strong, if not stronger? Titanium drill bits are one option.
They’re harder than cobalt drill bits and can stay sharper for longer periods of time. Carbide, or solid carbide, drill bits are also quite strong. They’re often used on extremely tough materials like stainless steel and cast iron. And finally, diamond drill bits are the strongest type of drill bit available.
They can be used on the hardest materials, like granite and marble. So if you’re looking for a drill bit that’s stronger than cobalt, any of these would be a good choice.
Drill Bits for Metal Stainless Steel Drilling
Can you Use Cobalt Drill Bits with a Hand Drill?
Cobalt drill bits are made of a hard metal that is designed to withstand high levels of heat and friction. This makes them ideal for drilling through tough materials such as stainless steel and cast iron.
While cobalt drill bits can be used with a hand drill, it is important to use caution. The high speed and torque of a hand drill can cause the bit to overheat, which can damage the bit and the material being drilled. For best results, use a cobalt drill bit with a low-speed power drill.
Cobalt Drill Bits with Hand Drill
What is the Hardest Drill Bit You Can Buy?
For the longest time, cobalt was the hardest drill bit you could buy.
That all changed when diamond drill bits were introduced. Diamond is not only harder than cobalt, but it is also more resistant to heat and wear.
As a result, diamond drill bits can stay sharp for much longer, making them ideal for use in difficult-to-drill materials like stainless steel and titanium. However, cobalt drill bits are still a good choice for softer materials like wood and plastic. They are also less expensive than diamond drill bits, making them a good choice for budget-conscious shoppers.
Cobalt Drill Bits – Your Best Choice
In the end, the best drill bit to use depends on the material you’re drilling and your budget. If you need to drill through tough materials, go with a diamond bit. If you’re working with softer materials or on a tight budget, stick with cobalt.
Can cobalt drill bits be sharpened?
Cobalt drill bits are made of a cobalt alloy steel that contains 5 to 8 percent cobalt. This cobalt makes the steel harder than high-speed or molybdenum steel drill bits. The cobalt also makes these drill bits more brittle than other types. As a result, they can lose their sharpness quickly and can be difficult to sharpen.
However, with the proper tools and techniques, it is possible to sharpen cobalt drill bits. First, the bit should be placed in a drill chuck and mounted on a lathe. Next, the point of the bit should be ground to the desired angle using a grinding wheel. Finally, the bit should be honed with a file or stoned to remove any burrs and return it to its original sharpness. With proper care, cobalt drill bits can provide years of service.
What is the Best Drill Bit to Go Through Metal?
If you need to drill through metal, cobalt drill bits are the best option. They’re made of a cobalt-alloy steel that’s designed to withstand high temperatures, making them ideal for drilling through tough materials. Plus, the cobalt provides added hardness and durability, so your drill bits will last longer. When shopping for cobalt drill bits, look for those that are labeled as “high speed” or “high performance.” These types of bits will stay sharp longer and Drill through metal faster.
Best Drill Bit To Fastly Go Through Metal
What Drill Bits Stay Sharp the Longest?
Cobalt drill bits are designed for heavy-duty drilling and are ideal for use on tougher materials like stainless steel and cast iron. They stay sharp longer than other types of drill bits, making them a good choice for frequent or professional use. However, cobalt drill bits are also more expensive than other options and can break more easily if they overheat.
For these reasons, they may not be the best choice for every project. But if you need a drill bit that can stand up to repeated use and handle tougher materials, cobalt is a good option to consider.
HSS Drill Bits Stay Sharp the Longest
Which is Harder Carbide or Cobalt?
When it comes to drill bits, cobalt drill bits are considered to be some of the hardest and most durable. They are able to retain their sharpness for a longer period of time than other types of drill bits, making them ideal for heavy-duty drilling.
However, carbide drill bits are also designed for durability and are able to withstand high temperatures. In terms of hardness, carbide is harder than cobalt. As a result, carbide drill bits are often used for drilling through tough materials such as stainless steel. When it comes to choosing between cobalt and carbide drill bits, it really depends on the type of material you will be drilling.
If you need a drill bit that can handle tough materials, then carbide is the way to go. However, if you need a bit that can retain its sharpness for a longer period of time, then cobalt is the better option. Ultimately, the decision comes down to personal preference and the specific needs of your project.
What is Stronger Cobalt or Tungsten?
When it comes to drill bits, cobalt is often seen as the superior choice. cobalt drill bits are made with a higher percentage of cobalt, which makes them harder and more resistant to wear. This means that cobalt drill bits can last longer and drill through tougher materials.
However, tungsten has its own advantages. Tungsten drill bits are typically cheaper than cobalt drill bits, and they can also be used on a wider range of materials. In addition, tungsten is less likely to overheat, making it a safer choice for DIY projects. Ultimately, the best drill bit for your project will depend on your specific needs.
Tungsten Carbide Drill Bits Dimensions Chart
| No. | Flute Diameter (mm) | Flute length (mm) | Shank Diameter (mm) | Overall length (mm) |
| D3.1*20*D6*62 Tungsten Cobalt Drill Bits | 3.1 | 20 | 6 | 62 |
| D3.2*20*D6*62 Tungsten Cobalt Drill Bits | 3.2 | 20 | 6 | 62 |
| D3.3*20*D6*62 Tungsten Cobalt Drill Bits | 3.3 | 20 | 6 | 62 |
| D3.4*20*D6*62 Tungsten Cobalt Drill Bits | 3.4 | 20 | 6 | 62 |
| D3.5*20*D6*62 Tungsten Cobalt Drill Bits | 3.5 | 20 | 6 | 62 |
| D3.6*20*D6*62 Tungsten Cobalt Drill Bits | 3.6 | 20 | 6 | 62 |
| D3.7*20*D6*62 Tungsten Cobalt Drill Bits | 3.7 | 20 | 6 | 62 |
| D3.8*24*D6*66 Tungsten Cobalt Drill Bits | 3.8 | 24 | 6 | 66 |
| D3.9*24*D6*66 Tungsten Cobalt Drill Bits | 3.9 | 24 | 6 | 66 |
| D4*24*D6*66 Tungsten Cobalt Drill Bits | 4 | 24 | 6 | 66 |
| D4.1*24*D6*66 Tungsten Cobalt Drill Bits | 4.1 | 24 | 6 | 66 |
| D4.2*24*D6*66 Tungsten Cobalt Drill Bits | 4.2 | 24 | 6 | 66 |
| D4.3*24*D6*66 Tungsten Cobalt Drill Bits | 4.3 | 24 | 6 | 66 |
| D4.4*24*D6*66 Tungsten Cobalt Drill Bits | 4.4 | 24 | 6 | 66 |
| D4.5*24*D6*66 Tungsten Cobalt Drill Bits | 4.5 | 24 | 6 | 66 |
| D4.6*24*D6*66 Tungsten Cobalt Drill Bits | 4.6 | 24 | 6 | 66 |
| D4.7*24*D6*66 Tungsten Cobalt Drill Bits | 4.7 | 24 | 6 | 66 |
| D4.8*28*D6*66 Tungsten Cobalt Drill Bits | 4.8 | 28 | 6 | 66 |
| D4.9*28*D6*66 Tungsten Cobalt Drill Bits | 4.9 | 28 | 6 | 66 |
| D5*28*D6*66 Tungsten Cobalt Drill Bits | 5 | 28 | 6 | 66 |
| D5.1*28*D6*66 Tungsten Cobalt Drill Bits | 5.1 | 28 | 6 | 66 |
| D5.2*28*D6*66 Tungsten Cobalt Drill Bits | 5.2 | 28 | 6 | 66 |
| D5.3*28*D6*66 Tungsten Cobalt Drill Bits | 5.3 | 28 | 6 | 66 |
| D5.4*28*D6*66 Tungsten Cobalt Drill Bits | 5.4 | 28 | 6 | 66 |
| D5.5*28*D6*66 Tungsten Cobalt Drill Bits | 5.5 | 28 | 6 | 66 |
| D5.6*28*D6*66 Tungsten Cobalt Drill Bits | 5.6 | 28 | 6 | 66 |
| D5.7*28*D6*66 Tungsten Cobalt Drill Bits | 5.7 | 28 | 6 | 66 |
| D5.8*28*D6*66 Tungsten Cobalt Drill Bits | 5.8 | 28 | 6 | 66 |
| D5.9*28*D6*66 Tungsten Cobalt Drill Bits | 5.9 | 28 | 6 | 66 |
| D6*28*D6*66 Tungsten Cobalt Drill Bits | 6 | 28 | 6 | 66 |
| D6.1*34*D8*79 Tungsten Cobalt Drill Bits | 6.1 | 34 | 8 | 79 |
| D6.2*34*D8*79 Tungsten Cobalt Drill Bits | 6.2 | 34 | 8 | 79 |
| D6.3*34*D8*79 Tungsten Cobalt Drill Bits | 6.3 | 34 | 8 | 79 |
| D6.4*34*D8*79 Tungsten Cobalt Drill Bits | 6.4 | 34 | 8 | 79 |
| D6.5*34*D8*79 Tungsten Cobalt Drill Bits | 6.5 | 34 | 8 | 79 |
| D6.6*34*D8*79 Tungsten Cobalt Drill Bits | 6.6 | 34 | 8 | 79 |
| D6.7*34*D8*79 Tungsten Cobalt Drill Bits | 6.7 | 34 | 8 | 79 |
| D6.8*34*D8*79 Tungsten Cobalt Drill Bits | 6.8 | 34 | 8 | 79 |
| D6.9*34*D8*79 Tungsten Cobalt Drill Bits | 6.9 | 34 | 8 | 79 |
| D7*34*D8*79 Tungsten Cobalt Drill Bits | 7 | 34 | 8 | 79 |
| D7.1*41*D8*79 Tungsten Cobalt Drill Bits | 7.1 | 41 | 8 | 79 |
| D7.2*41*D8*79 Tungsten Cobalt Drill Bits | 7.2 | 41 | 8 | 79 |
| D7.3*41*D8*79 Tungsten Cobalt Drill Bits | 7.3 | 41 | 8 | 79 |
| D7.4*41*D8*79 Tungsten Cobalt Drill Bits | 7.4 | 41 | 8 | 79 |
| D7.5*41*D8*79 Tungsten Cobalt Drill Bits | 7.5 | 41 | 8 | 79 |
| D7.6*41*D8*79 Tungsten Cobalt Drill Bits | 7.6 | 41 | 8 | 79 |
| D7.7*41*D8*79 Tungsten Cobalt Drill Bits | 7.7 | 41 | 8 | 79 |
| D7.8*41*D8*79 Tungsten Cobalt Drill Bits | 7.8 | 41 | 8 | 79 |
| D7.9*41*D8*79 Tungsten Cobalt Drill Bits | 7.9 | 41 | 8 | 79 |
| D8*41*D8*79 Tungsten Cobalt Drill Bits | 8 | 41 | 8 | 79 |
| D8.1*47*D10*89 Tungsten Cobalt Drill Bits | 8.1 | 47 | 10 | 89 |
| D8.2*47*D10*89 Tungsten Cobalt Drill Bits | 8.2 | 47 | 10 | 89 |
| D8.3*47*D10*89 Tungsten Cobalt Drill Bits | 8.3 | 47 | 10 | 89 |
| D8.4*47*D10*89 Tungsten Cobalt Drill Bits | 8.4 | 47 | 10 | 89 |
| D8.5*47*D10*89 Tungsten Cobalt Drill Bits | 8.5 | 47 | 10 | 89 |
| D8.6*47*D10*89 Tungsten Cobalt Drill Bits | 8.6 | 47 | 10 | 89 |
| D8.7*47*D10*89 Tungsten Cobalt Drill Bits | 8.7 | 47 | 10 | 89 |
| D8.8*47*D10*89 Tungsten Cobalt Drill Bits | 8.8 | 47 | 10 | 89 |
| D8.9*47*D10*89 Tungsten Cobalt Drill Bits | 8.9 | 47 | 10 | 89 |
| D9*47*D10*89 Tungsten Cobalt Drill Bits | 9 | 47 | 10 | 89 |
| D9.1*47*D10*89 Tungsten Cobalt Drill Bits | 9.1 | 47 | 10 | 89 |
| D9.2*47*D10*89 Tungsten Cobalt Drill Bits | 9.2 | 47 | 10 | 89 |
| D9.3*47*D10*89 Tungsten Cobalt Drill Bits | 9.3 | 47 | 10 | 89 |
| D9.4*47*D10*89 Tungsten Cobalt Drill Bits | 9.4 | 47 | 10 | 89 |
| D9.5*47*D10*89 Tungsten Cobalt Drill Bits | 9.5 | 47 | 10 | 89 |
| D9.6*47*D10*89 Tungsten Cobalt Drill Bits | 9.6 | 47 | 10 | 89 |
| D9.7*47*D10*89 Tungsten Cobalt Drill Bits | 9.7 | 47 | 10 | 89 |
| D9.8*47*D10*89 Tungsten Cobalt Drill Bits | 9.8 | 47 | 10 | 89 |
| D9.9*47*D10*89 Tungsten Cobalt Drill Bits | 9.9 | 47 | 10 | 89 |
| D10*47*D10*89 Tungsten Cobalt Drill Bits | 10 | 47 | 10 | 89 |
| D10.1*55*D12*102 Tungsten Cobalt Drill Bits | 10.1 | 55 | 12 | 102 |
| D10.2*55*D12*102 Tungsten Cobalt Drill Bits | 10.2 | 55 | 12 | 102 |
| D10.3*55*D12*102 Tungsten Cobalt Drill Bits | 10.3 | 55 | 12 | 102 |
| D10.4*55*D12*102 Tungsten Cobalt Drill Bits | 10.4 | 55 | 12 | 102 |
| D10.5*55*D12*102 Tungsten Cobalt Drill Bits | 10.5 | 55 | 12 | 102 |
| D10.6*55*D12*102 Tungsten Cobalt Drill Bits | 10.6 | 55 | 12 | 102 |
| D10.7*55*D12*102 Tungsten Cobalt Drill Bits | 10.7 | 55 | 12 | 102 |
| D10.8*55*D12*102 Tungsten Cobalt Drill Bits | 10.8 | 55 | 12 | 102 |
| D10.9*55*D12*102 Tungsten Cobalt Drill Bits | 10.9 | 55 | 12 | 102 |
| D11*55*D12*102 Tungsten Cobalt Drill Bits | 11 | 55 | 12 | 102 |
| D11.1*55*D12*102 Tungsten Cobalt Drill Bits | 11.1 | 55 | 12 | 102 |
| D11.2*55*D12*102 Tungsten Cobalt Drill Bits | 11.2 | 55 | 12 | 102 |
| D11.3*55*D12*102 Tungsten Cobalt Drill Bits | 11.3 | 55 | 12 | 102 |
| D11.4*55*D12*102 Tungsten Cobalt Drill Bits | 11.4 | 55 | 12 | 102 |
| D11.5*55*D12*102 Tungsten Cobalt Drill Bits | 11.5 | 55 | 12 | 102 |
| D11.6*55*D12*102 Tungsten Cobalt Drill Bits | 11.6 | 55 | 12 | 102 |
| D11.7*55*D12*102 Tungsten Cobalt Drill Bits | 11.7 | 55 | 12 | 102 |
| D11.8*55*D12*102 Tungsten Cobalt Drill Bits | 11.8 | 55 | 12 | 102 |
| D11.9*55*D12*102 Tungsten Cobalt Drill Bits | 11.9 | 55 | 12 | 102 |
| D12*55*D12*102 Tungsten Cobalt Drill Bits | 12 | 55 | 12 | 102 |
| D12.1*60*D14*107 Tungsten Cobalt Drill Bits | 12.1 | 60 | 14 | 107 |
| D12.2*60*D14*107 Tungsten Cobalt Drill Bits | 12.2 | 60 | 14 | 107 |
| D12.3*60*D14*107 Tungsten Cobalt Drill Bits | 12.3 | 60 | 14 | 107 |
| D12.4*60*D14*107 Tungsten Cobalt Drill Bits | 12.4 | 60 | 14 | 107 |
| D12.5*60*D14*107 Tungsten Cobalt Drill Bits | 12.5 | 60 | 14 | 107 |
| D12.6*60*D14*107 Tungsten Cobalt Drill Bits | 12.6 | 60 | 14 | 107 |
| D12.7*60*D14*107 Tungsten Cobalt Drill Bits | 12.7 | 60 | 14 | 107 |
| D12.8*60*D14*107 Tungsten Cobalt Drill Bits | 12.8 | 60 | 14 | 107 |
| D12.9*60*D14*107 Tungsten Cobalt Drill Bits | 12.9 | 60 | 14 | 107 |
| D13*60*D14*107 Tungsten Cobalt Drill Bits | 13 | 60 | 14 | 107 |
| D13.2*60*D14*107 Tungsten Cobalt Drill Bits | 13.2 | 60 | 14 | 107 |
| D13.3*60*D14*107 Tungsten Cobalt Drill Bits | 13.3 | 60 | 14 | 107 |
| D13.5*60*D14*107 Tungsten Cobalt Drill Bits | 13.5 | 60 | 14 | 107 |
| D13.7*60*D14*107 Tungsten Cobalt Drill Bits | 13.7 | 60 | 14 | 107 |
| D13.8*60*D14*107 Tungsten Cobalt Drill Bits | 13.8 | 60 | 14 | 107 |
| D14*60*D14*107 Tungsten Cobalt Drill Bits | 14 | 60 | 14 | 107 |
| D14.2*65*D16*115 Tungsten Cobalt Drill Bits | 14.2 | 65 | 16 | 115 |
| D14.3*65*D16*115 Tungsten Cobalt Drill Bits | 14.3 | 65 | 16 | 115 |
| D14.4*65*D16*115 Tungsten Cobalt Drill Bits | 14.4 | 65 | 16 | 115 |
| D14.5*65*D16*115 Tungsten Cobalt Drill Bits | 14.5 | 65 | 16 | 115 |
| D14.7*65*D16*115 Tungsten Cobalt Drill Bits | 14.7 | 65 | 16 | 115 |
| D15*65*D16*115 Tungsten Cobalt Drill Bits | 15 | 65 | 16 | 115 |
| D15.2*65*D16*115 Tungsten Cobalt Drill Bits | 15.2 | 65 | 16 | 115 |
| D15.5*65*D16*115 Tungsten Cobalt Drill Bits | 15.5 | 65 | 16 | 115 |
| D15.6*65*D16*115 Tungsten Cobalt Drill Bits | 15.6 | 65 | 16 | 115 |
| D15.7*65*D16*115 Tungsten Cobalt Drill Bits | 15.7 | 65 | 16 | 115 |
| D15.8*65*D16*115 Tungsten Cobalt Drill Bits | 15.8 | 65 | 16 | 115 |
| D16*65*D16*115 Tungsten Cobalt Drill Bits | 16 | 65 | 16 | 115 |
| D16.5*73*D18*123 Tungsten Cobalt Drill Bits | 16.5 | 73 | 18 | 123 |
| D17*73*D18*123 Tungsten Cobalt Drill Bits | 17 | 73 | 18 | 123 |
| D17.5*73*D18*123 Tungsten Cobalt Drill Bits | 17.5 | 73 | 18 | 123 |
| D18*73*D18*123 Tungsten Cobalt Drill Bits | 18 | 73 | 18 | 123 |
| D18.5*79*D20*131 Tungsten Cobalt Drill Bits | 18.5 | 79 | 20 | 131 |
| D19*79*D20*131 Tungsten Cobalt Drill Bits | 19 | 79 | 20 | 131 |
| D19.5*79*D20*131 Tungsten Cobalt Drill Bits | 19.5 | 79 | 20 | 131 |
| D20*79*D20*131 Tungsten Cobalt Drill Bits | 20 | 79 | 20 | 131 |
DIN338 Cobalt Hss Drill Bits Dimensions Chart
| DIN338 Cobalt Hss Drill Bits | ||||
| Diameter (D1) | Shank Type | Flute Length | Overall Length | |
| mm | Inch | L2 | L1 | |
| 1.0 | Straight Shank Cobalt Drill Bits | 12 | 34 | |
| 1.1 | Straight Shank Cobalt Drill Bits | 14 | 36 | |
| 1.2 | Straight Shank Cobalt Drill Bits | 16 | 38 | |
| 1.3 | Straight Shank Cobalt Drill Bits | 16 | 38 | |
| 1.4 | Straight Shank Cobalt Drill Bits | 18 | 40 | |
| 1.5 | Straight Shank Cobalt Drill Bits | 20 | 43 | |
| 1.59 | 1/16″ | Straight Shank Cobalt Drill Bits | 20 | 43 |
| 1.6 | Straight Shank Cobalt Drill Bits | 18 | 40 | |
| 1.7 | Straight Shank Cobalt Drill Bits | 20 | 43 | |
| 1.8 | Straight Shank Cobalt Drill Bits | 22 | 46 | |
| 1.9 | Straight Shank Cobalt Drill Bits | 22 | 46 | |
| 1.98 | 5/64″ | Straight Shank Cobalt Drill Bits | 24 | 49 |
| 2.0 | Straight Shank Cobalt Drill Bits | 24 | 49 | |
| 2.1 | Straight Shank Cobalt Drill Bits | 24 | 49 | |
| 2.2 | Straight Shank Cobalt Drill Bits | 27 | 53 | |
| 2.3 | Straight Shank Cobalt Drill Bits | 27 | 53 | |
| 2.38 | 3/32″ | Straight Shank Cobalt Drill Bits | 30 | 57 |
| 2.4 | Straight Shank Cobalt Drill Bits | 30 | 57 | |
| 2.5 | Straight Shank Cobalt Drill Bits | 30 | 57 | |
| 2.6 | Straight Shank Cobalt Drill Bits | 30 | 57 | |
| 2.7 | Straight Shank Cobalt Drill Bits | 33 | 61 | |
| 2.78 | 7/64″ | Straight Shank Cobalt Drill Bits | 33 | 61 |
| 2.8 | Straight Shank Cobalt Drill Bits | 33 | 61 | |
| 2.9 | Straight Shank Cobalt Drill Bits | 33 | 61 | |
| 3.0 | Straight Shank Cobalt Drill Bits | 33 | 61 | |
| 3.1 | Straight Shank Cobalt Drill Bits | 36 | 65 | |
| 3.17 | 1/8″ | Straight Shank Cobalt Drill Bits | 36 | 65 |
| 3.2 | Straight Shank Cobalt Drill Bits | 36 | 65 | |
| 3.3 | Straight Shank Cobalt Drill Bits | 36 | 65 | |
| 3.4 | Straight Shank Cobalt Drill Bits | 39 | 70 | |
| 3.5 | Straight Shank Cobalt Drill Bits | 39 | 70 | |
| 3.57 | 9/64″ | Straight Shank Cobalt Drill Bits | 39 | 70 |
| 3.6 | Straight Shank Cobalt Drill Bits | 39 | 70 | |
| 3.7 | Straight Shank Cobalt Drill Bits | 39 | 70 | |
| 3.8 | Straight Shank Cobalt Drill Bits | 43 | 75 | |
| 3.9 | Straight Shank Cobalt Drill Bits | 43 | 75 | |
| 3.97 | 5/32″ | Straight Shank Cobalt Drill Bits | 43 | 75 |
| 4.0 | Straight Shank Cobalt Drill Bits | 43 | 75 | |
| 4.1 | Straight Shank Cobalt Drill Bits | 43 | 75 | |
| 4.2 | Straight Shank Cobalt Drill Bits | 43 | 75 | |
| 4.3 | Straight Shank Cobalt Drill Bits | 47 | 80 | |
| 4.37 | 11/64″ | Straight Shank Cobalt Drill Bits | 47 | 80 |
| 4.4 | Straight Shank Cobalt Drill Bits | 47 | 80 | |
| 4.5 | Straight Shank Cobalt Drill Bits | 47 | 80 | |
| 4.6 | Straight Shank Cobalt Drill Bits | 47 | 80 | |
| 4.7 | Straight Shank Cobalt Drill Bits | 47 | 80 | |
| 4.76 | 3/16″ | Straight Shank Cobalt Drill Bits | 52 | 52 |
| 4.8 | Straight Shank Cobalt Drill Bits | 52 | 52 | |
| 4.9 | Straight Shank Cobalt Drill Bits | 52 | 52 | |
| 5.0 | Straight Shank Cobalt Drill Bits | 52 | 52 | |
| 5.1 | Straight Shank Cobalt Drill Bits | 52 | 52 | |
| 5.16 | 13/64″ | Straight Shank Cobalt Drill Bits | 52 | 52 |
| 5.2 | Straight Shank Cobalt Drill Bits | 52 | 52 | |
| 5.3 | Straight Shank Cobalt Drill Bits | 52 | 52 | |
| 5.4 | Straight Shank Cobalt Drill Bits | 57 | 57 | |
| 5.5 | Straight Shank Cobalt Drill Bits | 57 | 57 | |
| 5.56 | 7/32″ | Straight Shank Cobalt Drill Bits | 57 | 57 |
| 5.6 | Straight Shank Cobalt Drill Bits | 57 | 57 | |
| 5.7 | Straight Shank Cobalt Drill Bits | 57 | 57 | |
| 5.8 | Straight Shank Cobalt Drill Bits | 57 | 57 | |
| 5.9 | Straight Shank Cobalt Drill Bits | 57 | 57 | |
| 5.95 | 15/64″ | Straight Shank Cobalt Drill Bits | 57 | 57 |
| 6.0 | Straight Shank Cobalt Drill Bits | 57 | 57 | |
| 6.1 | Straight Shank Cobalt Drill Bits | 63 | 101 | |
| 6.2 | Straight Shank Cobalt Drill Bits | 63 | 101 | |
| 6.3 | Straight Shank Cobalt Drill Bits | 63 | 101 | |
| 6.35 | 1/4″ | Straight Shank Cobalt Drill Bits | 63 | 101 |
| 6.4 | Straight Shank Cobalt Drill Bits | 63 | 101 | |
| 6.5 | Straight Shank Cobalt Drill Bits | 63 | 101 | |
| 6.6 | Straight Shank Cobalt Drill Bits | 63 | 101 | |
| 6.7 | Straight Shank Cobalt Drill Bits | 63 | 101 | |
| 6.75 | 17/64″ | Straight Shank Cobalt Drill Bits | 69 | 109 |
| 6.8 | Straight Shank Cobalt Drill Bits | 69 | 109 | |
| 6.9 | Straight Shank Cobalt Drill Bits | 69 | 109 | |
| 7.0 | Straight Shank Cobalt Drill Bits | 69 | 109 | |
| 7.1 | Straight Shank Cobalt Drill Bits | 69 | 109 | |
| 7.14 | 9/32″ | Straight Shank Cobalt Drill Bits | 69 | 109 |
| 7.2 | Straight Shank Cobalt Drill Bits | 69 | 109 | |
| 7.3 | Straight Shank Cobalt Drill Bits | 69 | 109 | |
| 7.4 | Straight Shank Cobalt Drill Bits | 69 | 109 | |
| 7.5 | Straight Shank Cobalt Drill Bits | 69 | 109 | |
| 7.54 | 19/64″ | Straight Shank Cobalt Drill Bits | 75 | 117 |
| 7.6 | Straight Shank Cobalt Drill Bits | 75 | 117 | |
| 7.7 | Straight Shank Cobalt Drill Bits | 75 | 117 | |
| 7.8 | Straight Shank Cobalt Drill Bits | 75 | 117 | |
| 7.9 | Straight Shank Cobalt Drill Bits | 75 | 117 | |
| 7.94 | 5/16″ | Straight Shank Cobalt Drill Bits | 75 | 117 |
| 8.0 | Straight Shank Cobalt Drill Bits | 75 | 117 | |
| 8.1 | Straight Shank Cobalt Drill Bits | 75 | 117 | |
| 8.2 | Straight Shank Cobalt Drill Bits | 75 | 117 | |
| 8.3 | Straight Shank Cobalt Drill Bits | 75 | 117 | |
| 8.33 | 21/64″ | Straight Shank Cobalt Drill Bits | 75 | 117 |
| 8.4 | Straight Shank Cobalt Drill Bits | 75 | 117 | |
| 8.5 | Straight Shank Cobalt Drill Bits | 75 | 117 | |
| 8.6 | Straight Shank Cobalt Drill Bits | 81 | 125 | |
| 8.7 | Straight Shank Cobalt Drill Bits | 81 | 125 | |
| 8.9 | Straight Shank Cobalt Drill Bits | 81 | 125 | |
| 9.0 | Straight Shank Cobalt Drill Bits | 81 | 125 | |
| 9.1 | Straight Shank Cobalt Drill Bits | 81 | 125 | |
| 9.13 | 23/64″ | Straight Shank Cobalt Drill Bits | 81 | 125 |
| 9.2 | Straight Shank Cobalt Drill Bits | 81 | 125 | |
| 9.3 | Straight Shank Cobalt Drill Bits | 81 | 125 | |
| 9.4 | Straight Shank Cobalt Drill Bits | 81 | 125 | |
| 9.5 | Straight Shank Cobalt Drill Bits | 81 | 125 | |
| 9.52 | 3/8″ | Straight Shank Cobalt Drill Bits | 87 | 133 |
| 9.6 | Straight Shank Cobalt Drill Bits | 87 | 133 | |
| 9.7 | Straight Shank Cobalt Drill Bits | 87 | 133 | |
| 9.8 | Straight Shank Cobalt Drill Bits | 87 | 133 | |
| 9.9 | Straight Shank Cobalt Drill Bits | 87 | 133 | |
| 9.92 | 25/64″ | Straight Shank Cobalt Drill Bits | 87 | 133 |
| 10.0 | Straight Shank Cobalt Drill Bits | 87 | 133 | |
| 10.1 | Straight Shank Cobalt Drill Bits | 87 | 133 | |
| 10.2 | Straight Shank Cobalt Drill Bits | 87 | 133 | |
| 10.3 | Straight Shank Cobalt Drill Bits | 87 | 133 | |
| 10.32 | 13/32″ | Straight Shank Cobalt Drill Bits | 87 | 133 |
| 10.4 | Straight Shank Cobalt Drill Bits | 87 | 133 | |
| 10.5 | Straight Shank Cobalt Drill Bits | 87 | 133 | |
| 10.6 | Straight Shank Cobalt Drill Bits | 87 | 133 | |
| 10.7 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 10.72 | 27/64″ | Straight Shank Cobalt Drill Bits | 94 | 142 |
| 10.8 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 10.9 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 11.0 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 11.1 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 11.11 | 7/16″ | Straight Shank Cobalt Drill Bits | 94 | 142 |
| 11.2 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 11.3 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 11.4 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 11.5 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 11.51 | 29/64″ | Straight Shank Cobalt Drill Bits | 94 | 142 |
| 11.6 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 11.7 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 11.8 | Straight Shank Cobalt Drill Bits | 94 | 142 | |
| 11.9 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 11.91 | 15/32″ | Straight Shank Cobalt Drill Bits | 101 | 151 |
| 12.0 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 12.1 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 12.2 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 12.3 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 12.30 | 31/64″ | Straight Shank Cobalt Drill Bits | 101 | 151 |
| 12.4 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 12.5 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 12.6 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 12.7 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 12.7 | 1/2″ | Straight Shank Cobalt Drill Bits | 101 | 151 |
| 12.8 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 12.9 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 13.0 | Straight Shank Cobalt Drill Bits | 101 | 151 | |
| 13.1 | 33/64″ | Straight Shank Cobalt Drill Bits | 101 | 151 |
| 13.49 | 17/32″ | Straight Shank Cobalt Drill Bits | 108 | 160 |
| 13.5 | Straight Shank Cobalt Drill Bits | 108 | 160 | |
| 13.89 | 35/64″ | Straight Shank Cobalt Drill Bits | 108 | 160 |
| 14.0 | Straight Shank Cobalt Drill Bits | 108 | 160 | |
| 14.29 | 9/16″ | Straight Shank Cobalt Drill Bits | 114 | 169 |
| 14.5 | Straight Shank Cobalt Drill Bits | 114 | 169 | |
| 14.68 | 37/64″ | Straight Shank Cobalt Drill Bits | 114 | 169 |
| 15.0 | Straight Shank Cobalt Drill Bits | 114 | 169 | |
| 15.08 | 19/32″ | Straight Shank Cobalt Drill Bits | 120 | 178 |
| 15.48 | 39/64″ | Straight Shank Cobalt Drill Bits | 120 | 178 |
| 15.5 | Straight Shank Cobalt Drill Bits | 120 | 178 | |
| 15.87 | 5/8″ | Straight Shank Cobalt Drill Bits | 120 | 178 |
| 16.0 | Straight Shank Cobalt Drill Bits | 120 | 178 | |
| 16.5 | Straight Shank Cobalt Drill Bits | 125 | 184 | |
| 16.67 | 21/32″ | Straight Shank Cobalt Drill Bits | 125 | 184 |
| 17.0 | Straight Shank Cobalt Drill Bits | 125 | 184 | |
| 17.46 | 11/16″ | Straight Shank Cobalt Drill Bits | 125 | 184 |
| 17.5 | Straight Shank Cobalt Drill Bits | 130 | 191 | |
| 18 | Straight Shank Cobalt Drill Bits | 130 | 191 | |
| 18.26 | 23/32″ | Straight Shank Cobalt Drill Bits | 130 | 191 |
| 18.5 | Straight Shank Cobalt Drill Bits | 135 | 198 | |
| 18.84 | 25/32″ | Straight Shank Cobalt Drill Bits | 140 | 205 |
| 19.0 | Straight Shank Cobalt Drill Bits | 135 | 198 | |
| 19.05 | 3/4″ | Straight Shank Cobalt Drill Bits | 135 | 198 |
| 19.5 | Straight Shank Cobalt Drill Bits | 140 | 205 | |
| 20 | Straight Shank Cobalt Drill Bits | 140 | 205 | |
| 20.64 | 13/16″ | Straight Shank Cobalt Drill Bits | 140 | 205 |
Are Cobalt Drill Bits Good for Metal?
The cobalt drill bits are excellent for use on tougher metals. They can penetrate these metals more efficiently and with greater precision. The cobalt also helps to dissipate the heat that is generated when drilling through metal.
As a result, cobalt drill bits are an ideal choice for those who need to do a lot of drilling on tougher metals. However, they are not recommended for use on softer metals, as they can cause damage.
In addition, cobalt drill bits are more expensive than other types of drill bits, so it is important to consider your needs before making a purchase.
Cobalt Step Drill Bits for Hard Metal Drilling
Is Cobalt or Titanium Stronger?
Cobalt drill bits are made of a cobalt-steel alloy that contains 5 to 8 percent cobalt. The high cobalt content makes the bits stronger and more durable than standard high-speed steel (HSS) drill bits.
They are also less likely to overheat when used for drilling hard materials such as stainless steel or cast iron. Titanium drill bits are made of a titanium alloy that contains 6 to 10 percent cobalt.
The cobalt gives the titanium drill bits their strength and durability. Titanium drill bits are also less likely to break than HSS drill bits and can be used to drill through tougher materials such as stainless steel and cast iron.
Can Cobalt Drill Bits be Used for Concrete?
Cobalt drill bits are made of a high-speed steel that contains cobalt. The cobalt makes the steel harder, so the bits stay sharp longer.
That’s why cobalt drill bits are ideal for use on hard materials such as stainless steel, cast iron, titanium, and hard plastics. So, can cobalt drill bits be used for concrete? While they’re not the ideal choice, cobalt drill bits can be used for drilling into concrete. However, they will wear out more quickly than carbide-tipped or diamond-tipped drill bits.
For best results, use a cobalt drill bit on a slow speed and apply light pressure. With proper care, a cobalt drill bit can provide decent service when drilling into concrete.
Drill Bits for Concrete
What is the Best Drill Bit for Cast Iron?
Cobalt drill bits are made of a high-speed steel that contains cobalt. The cobalt makes the drill bit harder and more heat resistant. This makes them ideal for drilling into hard materials, such as cast iron.
In addition, cobalt drill bits have a higher resistance to wear and tear, which allows them to retain their sharpness longer. For these reasons, cobalt drill bits are the best choice for drilling into cast iron.
How Do you Know If a Drill Bit is Cobalt?
cobalt drill bits are made of cobalt steel alloy and are designed for drilling into tough metals. The main benefit of cobalt drill bits is that they retain their sharpness for a long time.
They are also less likely to overheat than other types of drill bits. To tell if a drill bit is cobalt, look for the letters “HSS” (high-speed steel) on the shank of the bit. If the drill bit is black or silver in color, it is also likely cobalt.
Finally, cobalt drill bits are more expensive than other types of drill bits, so keep that in mind when making your purchase.
| HSS Drill Bits Manufacturer Made From | |||||||||
| Hss Drill Bits Steel No. | Steel No. | CHEMICAL ANALYSIS (%) | |||||||
| C | Si | Mn | P | S | Cr | W | Mo | ||
| HSS Drill Bits 4241 | W4Mo2Cr4VSi | 0.9 | 1 | 0.3 | ≤0.030 | ≤0.015 | 4.8 | 1.6 | 0.65 |
| 1 | 1.3 | 0.4 | 5.1 | 1.85 | 0.8 | ||||
| HSS Drill Bits 4341 | W4Mo3Cr4VSi | 0.89 | 0.6 | 0.3 | ≤0.030 | ≤0.015 | 3.8 | 3.6 | 2.6 |
| 0.97 | 1 | 0.4 | 4.4 | 3.85 | 2.85 | ||||
| HSS Drill Bits 9341 | W9Mo3Cr4V | 0.78 | 0.2 | 0.3 | ≤0.030 | ≤0.015 | 3.8 | 8.6 | 2.8 |
| 0.86 | 0.4 | 0.4 | 4.4 | 8.9 | 3.05 | ||||
| HSS Drill Bits M2 | W6Mo5Cr4V2 | 0.81 | 0.2 | 0.3 | ≤0.030 | ≤0.015 | 3.8 | 5.6 | 4.6 |
| 0.89 | 0.45 | 0.4 | 4.4 | 5.85 | 4.85 | ||||
| Cobalt HSS Drill Bits M35 | W6Mo5Cr4V2 Co5 | 0.88 | 0.2 | 0.3 | ≤0.030 | ≤0.015 | 3.8 | 5.6 | 4.6 |
| 0.95 | 0.45 | 0.4 | 4.4 | 5.85 | 4.85 | ||||
| Cobalt HSS Drill Bits M42 | W6Mo5Cr4V2 Co8 | 1.05 | 0.15 | 0.15 | ≤0.030 | ≤0.015 | 3.5 | 1.15 | 9 |
| 1.15 | 0.65 | 0.4 | 4.25 | 1.85 | 10 | ||||
Will a Cobalt Bit Drill Hardened Steel?
Cobalt drill bits are made of a high-speed steel with cobalt added to increase the hardness and strength of the bit. While cobalt drill bits are designed to drill through hard metals, they are not necessarily the best choice for hardened steel. This is because hardened steel is extremely difficult to drill through, and cobalt drill bits are not always up to the task.
In addition, cobalt drill bits tend to wear out quickly when used on hardened steel, so they are not the most cost-effective choice for this material.
If you need to drill through hardened steel, it is best to use a different type of drill bit that is specifically designed for this purpose.
Is Cobalt Stronger than Steel?
When it comes to strength, cobalt is often compared to steel. Both materials are known for their durability and resistance to wear and tear. However, cobalt has a few advantages over steel.
Firstly, cobalt is much harder than steel, meaning that it can withstand greater force without shattering.
Secondly, cobalt is less likely to rust or corrode than steel, making it ideal for use in wet or salty environments.
Finally, cobalt drill bits are able to stay sharp for longer than their steel counterparts, meaning that they can be used for repeated drilling with minimal wear and tear. For these reasons, cobalt is often considered to be the stronger of the two materials.
Do you Drill Steel Fast or Slow?
The best way to drill steel depends on the type of steel you’re working with. If you’re drilling through soft steel, a high speed is ideal. This will help to prevent the bit from overheating and breaking. However, if you’re drilling through hard steel, a low speed is necessary.
Cobalt drill bits are designed to withstand high temperatures, making them ideal for drilling through hard steel.
In general, it’s best to start with a slow speed and increase the speed as needed. This will help to prevent the bit from becoming overheated and breaking.
Which is Better M35 or M42 Cobalt?
Cobalt drill bits are made of high-speed steel with cobalt added to increase heat resistance and durability. The cobalt makes up 5-8% of the bit’s composition. M42 cobalt has 8% cobalt while M35 cobalt has 5% cobalt. The higher the cobalt content, the harder the steel and the more wear resistant it is.
However, the downside of a high cobalt content is that it makes the bit less tough and more brittle, so it’s more likely to break under heavy use. M35 cobalt is a good all-purpose cobalt drill bit and can be used for drilling into most materials, including stainless steel.
M42 cobalt is best suited for drilling into hard metals, such as titanium, inconel, and tool steels. It’s also the best choice for drilling into cast iron and hard plastics. If you’re not sure which cobalt drill bit to choose, go with M35 cobalt. It’s a versatile all-purpose bit that will get the job done in most cases.
Is it Worth Sharpening Drill Bits?
Any professional will tell you that it is always worth sharpening cobalt drill bits. Cobalt drill bits are made of a harder metal than standard drill bits, which means that they stay sharp for longer. However, even cobalt drill bits will eventually become dull.
When this happens, the drill bit will need to be replaced. If you regularly sharpen your cobalt drill bits, you can extend their lifespan and save money in the long run. In addition, sharp drill bits are safer to use than dull ones. A dull drill bit is more likely to slip, which could cause serious injury.
By keeping your cobalt drill bits sharp, you can avoid accidents and ensure that your work is of the highest quality.
Why Can’t I Drill Through Metal?
When it comes to drilling through metal, there are a few things to keep in mind.
First of all, you’ll need to use cobalt drill bits, which are specifically designed for drilling through hard materials.
Secondly, you’ll need to apply a steady amount of pressure when drilling, as too much pressure can cause the drill bit to break.
Finally, you’ll need to go slow; if you drill too quickly, the heat generated can cause the metal to warp. With these tips in mind, drilling through metal shouldn’t be too much of a problem.
What is the Difference Between 118 Degree and 135 Degree drill bits?
Drill bits are an important tool for any do-it-yourselfer or professional contractor.
With the right drill bit, you can create clean, precise holes in a variety of materials.
However, not all drill bits are created equal. One important distinction is the angle of the tip. cobalt drill bits have a 118-degree point angle, while 135-degree bits have a sharper point. The differences in these angles can have a major impact on how the bit performs.
Cobalt drill bits are ideal for drilling through tougher materials, while 135-degree bits work best on softer surfaces. In addition, cobalt bits tend to produce less vibration than their 135-degree counterparts, making them ideal for use with handheld drills. When choosing a drill bit, be sure to select one that is designed specifically for the material you will be drilling into.
With the right bit, you can achieve professional results without any hassle.
118 Degree and 135 Degree
How Do you Drill Out a Hardened Bolt?
Hardened bolts are designed to withstand high levels of tension, making them ideal for use in construction and machinery. However, these bolts can sometimes become seized, making them difficult to remove.
One way to drill out a hardened bolt is to use cobalt drill bits. These bits are made of a tough alloy that can withstand the high temperatures generated by drilling. When choosing a cobalt drill bit, be sure to select one that is slightly larger than the diameter of the bolt. This will help to prevent the bit from becoming stuck in the hole.
In addition, it is important to use plenty of lubricant when drilling, as this will help to keep the bit cool and prevent it from breaking.
With the right tools and techniques, drilling out a hardened bolt can be a relatively simple task.
How Do you Drill Out Hardened Steel?
Cobalt drill bits are the best type of bits to use when drilling out hardened steel. Because cobalt is harder than high-speed steel, it can penetrate the metal more easily.
In addition, cobalt drill bits are designed to withstand higher temperatures, making them ideal for drilling through tough materials. When using cobalt drill bits, it is important to keep the bit cool by using a cutting oil or coolant. This will help to extend the life of the bit and prevent the metal from overheating and becoming damaged.
Finally, it is important to use a slow speed when drilling with cobalt bits, as this will help to reduce the risk of breakage. By following these tips, you can successfully drill out hardened steel without any issues.
Which is Better Titanium or Black Oxide Drill Bits?
Titanium drill bits are made of a harder metal than black oxide bits, so they stay sharper longer. Titanium drill bits also have a lower friction coefficient, so they generate less heat and are less likely to break.
However, titanium drill bits are more expensive than black oxide drill bits. Cobalt drill bits are even more expensive than titanium, but they stay sharp even longer and can handle higher temperatures.
For most applications, black oxide drill bits are sufficient. However, for very hard materials or for situations where precision is essential, cobalt or titanium drill bits may be necessary.
What is the Best Grinding Wheel for Sharpening Drill Bits?
Cobalt drill bits are one of the most common materials used for drilling. They are made of cobalt and steel, which makes them very strong and durable.
However, cobalt drill bits are also very expensive. For this reason, many people opt for cheaper alternatives, such as ceramic drill bits. Ceramic drill bits are made of zirconia, which is a type of artificial stone. Zirconia is much harder than cobalt, making it an ideal material for grinding wheels.
However, it is also more brittle, meaning that it is more likely to break during use. For this reason, cobalt drill bits are still the best choice for sharpening drill bits.
What’s the Best Way to Sharpen Drill Bits?
Drill bits are an essential part of any toolkit, but they can quickly become dull with heavy use. While there are a number of ways to sharpen drill bits, cobalt drill bits are especially hardwearing and resistant to heat build-up, making them ideal for re-sharpening.
The best way to sharpen cobalt drill bits is to use a sharpening stone. Start by soaking the stone in water for 10 minutes to lubricate it. Next, hold the drill bit at a 20-degree angle to the stone and use gentle, even strokes to grind away the dull edge.
Once the edge is sharp, finish with a few strokes on a honing oilstone to create a fine, polished edge.
With proper care and regular sharpening, cobalt drill bits will stay sharp and last for many years of heavy use.
What is the Best Angle to Sharpen a Drill Bit?
When sharpening a drill bit, it is important to maintain the correct angle.
For cobalt drill bits, the ideal angle is 118 degrees. This angle provides the best balance between wear resistance and cutting ability. If the angle is too shallow, the drill bit will wear down more quickly. If the angle is too steep, the drill bit will not cut as efficiently. In either case, the life of the drill bit will be reduced.
By maintaining the correct angle, cobalt drill bits can stay sharp for a longer period of time.
How do you Sharpen a Drill Bit without a Grinder?
While it is possible to sharpen a drill bit without a grinder, it is generally not recommended. The best way to sharpen a drill bit is with a cobalt grinding wheel.
This type of wheel is specifically designed for sharpening high-speed steel and cobalt drill bits. Additionally, cobalt grinding wheels are designed to be used with water, which helps to keep the drill bit cool and prevents the buildup of heat.
However, if you do not have a cobalt grinding wheel, you can use a carbide burr. First, use a carbide burr to remove any existing material from the tip of the drill bit. Next, use the carbide burr to grind away the metal at the angle you wish to sharpen the drill bit. Finally, use a sharpening stone to hone the edge of the drill bit. While this method requires more time and effort, it will result in a sharper drill bit.
How do you sharpen a drill bit with a Dremel?
Cobalt drill bits are designed to withstand the high speeds and heat generated by power drilling.
However, even cobalt drill bits will eventually become dull and will need to be sharpened. One way to sharpen a cobalt drill bit is to use a Dremel tool.
First, attach the Dremel to a work surface. Next, insert the cobalt drill bit into the Dremel Chuck. Finally, tighten the chuck until the drill bit is secure.
Once the cobalt drill bit is secured in the Dremel chuck, begin sharpening the bit by running the Dremel at a high speed over the tip of the drill bit. Sharpen the entire circumference of the tip evenly. Stop occasionally to check your work and avoid over-heating the drill bit. When you are finished sharpening the cobalt drill bit, remove it from the Dremel Chuck and test it on a scrap piece of wood to ensure that it is properly sharpened.
Cobalt Drill Bits Sets
If you’re looking for a cobalt drill bit set that will withstand the rigors of professional use, you’ve come to the right place. Our cobalt drill bits are made from a high-strength cobalt alloy that can stand up to heavy use.
The bits are also heat-treated for added durability, and the tips are precision-ground for an accurate fit. In addition, the bits come in a handy storage case that keeps them organized and ready for use.
Whether you’re drilling through tough materials or simply need a dependable cobalt drill bit set for your workshop, we have what you’re looking for.
Cobalt Drill Bits for Hardened Steel
Cobalt drill bits are made of a cobalt alloy steel that contains 5-8% cobalt. This cobalt makes the steel harder than high-speed steel or carbon steel, so cobalt drill bits can be used to drill into harder metals.
They are also less likely to overheat and break than other types of drill bits. Cobalt drill bits come in a variety of sizes and shapes, so you can find the right one for your project.
They are also more expensive than other types of drill bits, but they will last longer and provide a better quality hole.
Best Cobalt Drill Bits
Cobalt drill bits are considered to be the best type of drill bit for use with hard metals. cobalt drill bits are made of a cobalt alloy, which is harder than high-speed steel. cobalt drill bits can be used to drill through stainless steel, cast iron, aluminum, titanium, and other difficult-to-drill materials.
Cobalt drill bits are also less likely to break than other types of drill bits.
While cobalt drill bits are more expensive than other types of drill bits, they will last longer and provide better results. If you need to drill through tough materials, cobalt drill bits are the best option.
M42 Cobalt Drill Bits
Cobalt drill bits are made of a high-speed steel that is cobalt-alloyed. This cobalt alloying makes the M42 cobalt drill bits harder and tougher than unalloyed high-speed steels. They are also more resistant to heat and wear, making them ideal for drilling in tough materials.
The M42 cobalt drill bits can be used on a variety of materials, including stainless steel and cast iron. They are also less likely to break or shatter than other types of drill bits, making them a safe choice for use in high-speed drilling applications.
Cobalt drill bits for metal
Cobalt drill bits are made of a cobalt-containing steel alloy and are designed for drilling through tough metals. The cobalt content in the steel alloy gives the drill bits a higher heat resistance than other types of drill bits, making them ideal for use on tougher metals.
In addition, the cobalt content also makes the drill bits more resistant to wear and tear, giving them a longer lifespan.
As a result, cobalt drill bits are an excellent choice for anyone who needs to drill through metal on a regular basis.
8% Cobalt Drill Bits
Cobalt drill bits are made of a high-speed steel with 8% cobalt content. They are designed for drilling in hard materials such as stainless steel and cast iron. Cobalt drill bits can be used in both handheld and machine-powered drills.
These bits offer higher heat resistance and durability than standard high-speed steel bits. They are also less likely to break or wear down under heavy use. For these reasons, cobalt drill bits are the preferred choice for many professional and industrial applications.
Cobalt Drill Bits for Stainless Steel
Cobalt drill bits are made of a cobalt steel alloy and are designed specifically for drilling into stainless steel and other hard metals. These bitsantages over traditional high-speed steel (HSS) bits because they Stay sharp longer cobalt alloy is harder than HSS. This means that the cutting edge of cobalt drill bits holds its shape longer, resulting in fewer trips back to the drill press to sharpen or replace the bit.
Cobalt bits also cut faster than HSS bits. The cobalt steel alloy is heat resistant, so the bits can be run at higher speeds without fear of breaking or wearing down. This makes cobalt drill bits ideal for use in high-speed drilling applications.
Finally, cobalt drill bits are less likely to break than HSS bits. The cobalt steel alloy is tougher than HSS, making it more resistant to breakage under high stress. This is an important consideration when drilling into hard metals, as broken drill bits can cause damage to the workpiece and be dangerous to the operator.
For these reasons, cobalt drill bits are the best choice for drilling into stainless steel and other hard metals. When choosing cobalt drillbits, be sure to select a size
Cobalt Drill Bits for Impact Driver
Cobalt drill bits are made of a high-speed steel with cobalt added for extra hardness and durability. They stay sharp longer than standard steel bits and are not as likely to break. These cobalt bits are ideal for use in an impact driver, which is a tool that delivers a high amount of torque.
The cobalt helps the bits to withstand the high speeds and forces generated by an impact driver. As a result, cobalt drill bits are the best choice for anyone who plans to do a lot of drilling with an impact driver.
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