Strongest Drill Bits
Hss Twist Drill Bit Black Surface
- Made of M2 high-speed steel, this drill bit is extremely sharp and capable.
- Drilling through a variety of materials including steel, cast iron, copper, aluminum alloy, wood, plastic, and other hard metals.
- Wear resistance and durability.
- The spiral groove design provides superior chip removal performance.
- The 135 tip & twist design increases the cutting speed with self-centering and prevents walking.
- Product Details
- Factory
- Material
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Product name
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High-Speed Steel HSS Twist Drill Bits Straight Shank Drill Bit
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Surface
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Black (White, Tin coated, amber finish, gold color, or as your request)
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Process
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Fully ground (Roll forged, edge ground, milled)
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Sharpening
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135 degree,(118 degrees, turbo max or as your request)
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Standards
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DIN338,DIN1897,DIN340,DIN1869,DIN345,DIN333 Jobber Length, Screw Machine Length, Taper Length, Aircraft Extension, Taper Shank
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Material
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HSS4241 , HSS4341 , HSS6542(M2) , HSS CO5% (M35) , HSS CO8%(M42)
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Shank
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Straight Shank (Parallel Shank), Reduced Shank, Hex Shank,1/4″ Quick Change Shank,3 Flats Shank, 1/2″ Shank,3/8″ Shank
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Use
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For drilling metal, wood concrete, and so on
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Helix Angle
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Type N. Type W, Type H.
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Rotating
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Right Hand, Left Hand
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Flute
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Normal Parabolic
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| Product Size | |||||
| DIN338 | |||||
| Diameter(mm) | Flute Length(mm) | Overall Length(mm) | Diameter(mm) | Flute Length(mm) | Overall Length(mm) |
| 0.5 | 6 | 22 | 9.5 | 81 | 125 |
| 1.0 | 12 | 34 | 10.0 | 87 | 133 |
| 1.5 | 20 | 43 | 10.5 | 87 | 133 |
| 2.0 | 24 | 49 | 11.0 | 94 | 142 |
| 2.5 | 30 | 57 | 11.5 | 94 | 142 |
| 3.0 | 33 | 61 | 12.0 | 101 | 151 |
| 3.2 | 36 | 65 | 12.5 | 101 | 151 |
| 3.5 | 39 | 70 | 13.0 | 101 | 151 |
| 4.0 | 43 | 75 | 13.5 | 108 | 160 |
| 4.2 | 43 | 75 | 14.0 | 108 | 160 |
| 4.5 | 47 | 80 | 14.5 | 114 | 169 |
| 4.8 | 52 | 86 | 15.0 | 114 | 169 |
| 5.0 | 52 | 86 | 15.5 | 120 | 178 |
| 5.2 | 52 | 86 | 16.0 | 120 | 178 |
| 5.5 | 57 | 93 | 16.5 | 125 | 184 |
| 6.0 | 57 | 93 | 17.0 | 125 | 184 |
| 6.5 | 63 | 101 | 17.5 | 130 | 191 |
| 7.0 | 69 | 109 | 18.0 | 130 | 191 |
| 7.5 | 69 | 109 | 18.5 | 135 | 198 |
| 8.0 | 75 | 117 | 19.0 | 135 | 198 |
| 8.5 | 75 | 117 | 19.5 | 140 | 205 |
| 9.0 | 81 | 125 | 20.0 | 140 | 205 |
| Jobber Length Fraction | |||||
| Diameter (Inch) | Flute Length(Inch) | Overall Length(mm) | Diameter (Inch) | Flute Length(Inch) | Overall Length(mm) |
| 3/64″ | 3/4″ | 1-3/4″ | 25/64″ | 3-3/4″ | 5-1/8″ |
| 1/16″ | 7/8″ | 1-7/8″ | 13/32″ | 3-7/8″ | 5-1/4″ |
| 5/64″ | 1″ | 2″ | 27/64″ | 3-15/16″ | 5-3/8″ |
| 3/32″ | 1-1/8″ | 2-1/4″ | 7/16″ | 4-1/16″ | 5-1/2″ |
| 7/64″ | 1-1/2″ | 2-5/8″ | 29/64″ | 4-3/16″ | 5-5/8″ |
| 1/8″ | 1-5/8″ | 2-3/4″ | 15/32″ | 4-5/16″ | 5-3/4″ |
| 9/64″ | 1-3/4″ | 2-7/8″ | 31/64″ | 4-3/8″ | 5-7/8″ |
| 5/32″ | 2″ | 3-1/8″ | 1/2″ | 4-1/2″ | 6″ |
| 11/64″ | 2-1/8″ | 3-1/4″ | 33/64″ | 4-13/16″ | 6-5/8″ |
| 3/16″ | 2-5/16″ | 3-1/2″ | 17/32″ | 4-13/16″ | 6-5/8″ |
| 13/64″ | 2-7/16″ | 3-5/8″ | 35/64″ | 4-13/16″ | 6-5/8″ |
| 7/32″ | 2-1/2″ | 3-3/4″ | 9/16″ | 4-13/16″ | 6-5/8″ |
| 15/64″ | 2-5/8″ | 3-7/8″ | 37/64″ | 4-13/16″ | 6-5/8″ |
| 1/4″ | 2-3/4″ | 4″ | 19/32″ | 5-3/16″ | 7-1/8″ |
| 17/64″ | 2-7/8″ | 4-1/8″ | 39/64″ | 5-3/16″ | 7-1/8″ |
| 9/32″ | 2-15/16″ | 4-1/4″ | 5/8″ | 5-3/16″ | 7-1/8″ |
| 19/64″ | 3-1/16″ | 4-3/8″ | 41/64″ | 5-3/16″ | 7-1/8″ |
| 5/16″ | 3-3/16″ | 4-1/2″ | 21/32″ | 5-3/16″ | 7-1/8″ |
| 21/64″ | 3-5/16″ | 4-5/8″ | 43/64″ | 5-5/8″ | 7-5/8″ |
| 11/32″ | 3-7/16″ | 4-3/4″ | 11/16″ | 5-5/8″ | 7-5/8″ |
| 23/64″ | 3-1/2″ | 4-7/8″ | |||
| 3/8″ | 3-5/8″ | 5″ | |||
| Jobber Length Number | |||||
| Diameter | Flute Length(Inch) | Overall Length(mm) | Diameter | Flute Length(Inch) | Overall Length(mm) |
| 1# | 2-5/8″ | 3-7/8″ | 31″ | 1-5/8″ | 2-3/4″ |
| 2# | 2-5/8″ | 3-7/8″ | 32″ | 1-5/8″ | 2-3/4″ |
| 3# | 2-1/2″ | 3-3/4″ | 33″ | 1-1/2″ | 2-5/8″ |
| 4# | 2-1/2″ | 3-3/4″ | 34″ | 1-1/2″ | 2-5/8″ |
| 5# | 2-1/2″ | 3-3/4″ | 35″ | 1-1/2″ | 2-5/8″ |
| 6# | 2-1/2″ | 3-3/4″ | 36″ | 1-7/16″ | 2-1/2″ |
| 7# | 2-7/16″ | 3-5/8″ | 37″ | 1-7/16″ | 2-1/2″ |
| 8# | 2-7/16″ | 3-5/8″ | 38″ | 1-7/16″ | 2-1/2″ |
| 9# | 2-7/16″ | 3-5/8″ | 39″ | 1-3/8″ | 2-3/8″ |
| 10# | 2-7/16″ | 3-5/8″ | 40″ | 1-3/8″ | 2-3/8″ |
| 11# | 2-5/16″ | 3-1/2″ | 41″ | 1-3/8″ | 2-3/8″ |
| 12# | 2-5/16″ | 3-1/2″ | 42″ | 1-1/4″ | 2-1/4″ |
| 13# | 2-5/16″ | 3-1/2″ | 43″ | 1-1/4″ | 2-1/4″ |
| 14# | 2-3/16″ | 3-3/8″ | 44″ | 1-1/8″ | 2-1/8″ |
| 15# | 2-3/16″ | 3-3/8″ | 45″ | 1-1/8″ | 2-1/8″ |
| 16# | 2-3/16″ | 3-3/8″ | 46″ | 1-1/8″ | 2-1/8″ |
| 17# | 2-3/16″ | 3-3/8″ | 47″ | 1″ | 2″ |
| 18# | 2-1/8″ | 3-1/4″ | 48″ | 1″ | 2″ |
| 19# | 2-1/8″ | 3-1/4″ | 49″ | 1″ | 2″ |
| 20# | 2-1/8″ | 3-1/4″ | 50″ | 1″ | 2″ |
| 21# | 2-1/8″ | 3-1/4″ | 51″ | 1″ | 2″ |
| 22# | 2″ | 3-1/8″ | 52″ | 7/8″ | 1-7/8″ |
| 23# | 2″ | 3-1/8″ | 53″ | 7/8″ | 1-7/8″ |
| 24# | 2″ | 3-1/8″ | 54″ | 7/8″ | 1-7/8″ |
| 25# | 1-7/8″ | 3″ | 55″ | 7/8″ | 1-7/8″ |
| 26# | 1-7/8″ | 3″ | 56″ | 3/4″ | 1-3/4″ |
| 27# | 1-7/8″ | 3″ | 57″ | 3/4″ | 1-3/4″ |
| 28# | 1-3/4″ | 2-7/8″ | 58″ | 11/16″ | 1-5/8″ |
| 29# | 1-3/4″ | 2-7/8″ | 59″ | 11/16″ | 1-5/8″ |
| 30# | 1-5/8″ | 2-3/4″ | 60″ | 11/16″ | 1-5/8″ |
| Jobber Length Letter | |||||
| Diameter | Flute Length(Inch) | Overall Length(mm) | Diameter (Inch) | Flute Length(Inch) | Overall Length(mm) |
| A | 2-5/8″ | 3-7/8″ | N | 3-1/16″ | 4-3/8″ |
| B | 2-3/4″ | 4″ | O | 4-1/2″ | 4-1/2″ |
| C | 2-3/4″ | 4″ | P | 4-5/8″ | 4-5/8″ |
| D | 2-3/4″ | 4″ | Q | 4-3/4″ | 4-3/4″ |
| E | 2-3/4″ | 4″ | R | 4-3/4″ | 4-3/4″ |
| F | 2-7/8″ | 4-1/8″ | S | 4-7/8″ | 4-7/8″ |
| G | 2-7/8″ | 4-1/8″ | T | 4-7/8″ | 4-7/8″ |
| H | 2-7/8″ | 4-1/8″ | U | 5″ | 5″ |
| I | 2-7/8″ | 4-1/8″ | V | 3-5/8″ | 5″ |
| J | 2-7/8″ | 4-1/8″ | W | 3-3/4″ | 5-1/8″ |
| K | 2-15/16″ | 4-1/4″ | X | 3-3/4″ | 5-1/8″ |
| L | 2-15/16″ | 4-1/4″ | Y | 3-7/8″ | 5-1/4″ |
| M | 3-1/16″ | 4-3/8″ | Z | 3-7/8″ | 5-1/4″ |
| * Custom-tailor would be available against customers’ requirements | |||||
Factory
DIN338 Jobber Length HSS Twist Drill Bit for Stainless Steel Metal Aluminium PVC Iron Drilling
The head adopts of special grinding blade with high hardness, durable in use
Double back Angle processing, improve positioning accuracy, reduce cutting resistance, with longer service life;
Features Smooth chip removal and high efficiency;
Universal round and straight handle design, convenient for electric drill, bench drill, etc.
They are great for most drilling jobs and materials such as aluminum, wood, plastics.
1. PREMIUM MATERIAL:High Grade M2 High Speed Steel with best heat-treatment to ensure the high hardness over HRC 62-65, and wear-resistance, abrasion-resistance, high red hardness.
2. BEST CUTTING TIP:135 Deg. Split Point Drill Angle to guarantee the best self-centering and positioning and drill smooth and quicker than normal point angle.
3. FLUTE FIGURES:The Best efficient Helix is to keep the quickest removal of chips and debris through flute during penetration of workpiece.
4. SURFACE TREATEMTN:Bright finished nitrided to enable the high hardness of surface and wear-resistance to keep long tooling life.
5. APPLICATION:Applicable for variety of material drilling, such as Carnon steel, Alloy steel, metal, iron, cast iron, copper alloy, aluminum, plastic…
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