Center Drill Bit Common Used Types

With the increasing popularity of automation, center drill bit should be more widely used in multi-function CNC equipment.

Its obvious function is to point the center hole to ensure the position of the part hole processing.

The central hole is mainly the positioning base surface of the shaft-type work piece installed in the center.

The 60 ° conical hole of the center hole is matched with the 60 ° conical surface in the center.

We will talk about the three commonly used types

No.1 Best Sell

our center drill bits are heat treated and tempered for long-lasting use.
The sharp or fluted cutting edges easily create clean, precise holes in various materials like wood, plastic, and even metal.
The self-centring feature makes it easy to keep your holes perfectly aligned.

No.2 Best Sell

With these center drill bits, you can achieve precise and accurate drilling results. The tialn coating helps to extend the life of the bits and resist wear and tear.
The solid carbide construction makes them durable and able to withstand heavy use.
And because they’re made from high quality materials, they’re perfect for use on a variety of materials.
Whether you’re drilling through metal, wood, or plastic, our center drill bits will get the job done quickly and efficiently.

No.3 Best Sell

This versatile bit is perfect for a wide range of applications, from general drilling to more precise jobs.
Made from high-quality materials, our center drill bit is designed to withstand even the toughest drilling challenges.
with a sharp 60-degree angle, it’s perfect for creating clean, precise holes in a variety of materials.
work with lathe machines and most electronic drills to drill holes in Steel, Iron, Alum, Carbon Steel, Brass and other tough material ranging from 170HB up to 200HB.

No.4 Best Sell

With a long-length shank for added stability and a sharp cutting edge.
Ideal for drilling accurate and precise holes in a variety of materials, this drill bit is made from high-quality materials and engineered to last.
it has a 60 degree countersink angle that fits all standard centers.

No.5 Best Sell

1Pcs chip flute design AType 4mm HSS Centre Drill Set Center Drill Countersink Lathe Bit

Suitable for bench drills, milling machines, machining centers.
High‑speed steel material, with high hardness, of sharpness, wear‑resistant and heat‑resistant, long service life.
Enlarged chip flute design, beneficial to high‑speed operation and accelerate chip removal.
Better strength and durability all‑ground spiral positioning with high work efficiency.
Special for die steel and stainless steel processing, very practical.

No.6 Best Sell

This versatile bit is perfect for a wide range of applications, from general drilling to more precise jobs.
Made from high-quality materials, our center drill bit is designed to withstand even the toughest drilling challenges.
with a sharp 60-degree angle, it’s perfect for creating clean, precise holes in a variety of materials.

B-type center drill mainly has a 120 ° tapered surface at the outer end, which is also called a protective tapered surface.
It can use the outer edge of a 60 ° tapered hole and not to be broken.
It is mainly used for machining on a lathe or a special machine tool.
Before machining the center hole, the end face of the shaft should be turned flat to prevent the B-type center drill from breaking.
The peak angle of the standard center drill is generally 118 degrees.
When choosing a B-type center drill, users often need to design according to their needs, and they need to choose a reasonable type of center drill.
When using it for processing, if there is an abnormal problem, then you need to stop the processing work, and then process it after you find out the cause.

Therefore, the two are used in different lathes or machine tools.

Before machining the center hole, we can flatten the end face of the shaft to prevent the center drill from breaking.
Generally, the peak angle of the standard center drill is 118 degrees.
In fact, the function of the center drill is not just a fixed point function.
It is also can use the center drill as a chamfer drill.

The compound center drill can not only be used alone but also can be used in different mechanical equipment.

Do you Know How Many Types of Center Drill Bits?