Cobalt Tipped Drill Bits
DIN1869 Hss M35 Co 5% Drill Bit Aircraft Extension Long Drill Bit
- Made with high-quality HSS M35 cobalt steel
- Designed for long drilling life and fast drilling performance.
- Ember finished surface treatment adds extra hardness to the drill bit body.
- With a split point angle of 135 degrees, this drill bit is self-centering and will not “walk” or “wander” while in use.
- Cobalt Drill Bit will start on its own and penetrate quickly with less pressure.
- Product Details
- Factory
- Material
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Product Description |
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| More Choice For You: Home > Cobalt Drill Bit | |
| Product Name | DIN1869 Hss M35 Co 5% Drill Bit Aircraft Extension Long Drill Bit |
| Size | 1-13mm |
| Material | M35 (Co5%), M42 (Co8%) |
| Flute Type | Single Flute |
| Shank | Round Shank (We also Have Reduced Shank, Taper Shank, Hex Shank) |
| Surface Finish | Amber (We also have Black Oxide) |
| Package | 10 or 5pcs in One Plastic Box |
| Product Size | |||||
| DIN1869 R1 RN | |||||
| Diameter (mm) | Flute Length (mm) | Overall Length (mm) | Diameter (mm) | Flute Length (mm) | Overall Length (mm) |
| 2.0 | 85 | 125 | 8.0 | 165 | 240 |
| 2.5 | 95 | 140 | 8.5 | 165 | 240 |
| 3.0 | 100 | 150 | 9.0 | 175 | 250 |
| 3.5 | 115 | 165 | 9.5 | 175 | 250 |
| 4.0 | 120 | 175 | 10.0 | 185 | 265 |
| 4.5 | 125 | 185 | 10.5 | 185 | 265 |
| 5.0 | 135 | 195 | 11.0 | 195 | 280 |
| 5.5 | 140 | 205 | 11.5 | 195 | 280 |
| 6.0 | 140 | 205 | 12.0 | 205 | 295 |
| 6.5 | 150 | 215 | 12.5 | 205 | 295 |
| 7.0 | 155 | 225 | 13.0 | 205 | 295 |
| 7.5 | 155 | 225 | |||
| DIN1869 R2 RN | |||||
| Diameter (mm) | Flute Length (mm) | Overall Length (mm) | Diameter (mm) | Flute Length (mm) | Overall Length (mm) |
| 3.0 | 130 | 190 | 8.5 | 210 | 305 |
| 3.5 | 145 | 210 | 9.0 | 220 | 320 |
| 4.0 | 150 | 220 | 9.5 | 220 | 320 |
| 4.5 | 160 | 235 | 10.0 | 235 | 340 |
| 5.0 | 170 | 245 | 10.5 | 235 | 340 |
| 5.5 | 180 | 260 | 11.0 | 250 | 365 |
| 6.0 | 180 | 260 | 11.5 | 250 | 365 |
| 6.5 | 190 | 275 | 12.0 | 260 | 375 |
| 7.0 | 200 | 290 | 12.5 | 260 | 375 |
| 7.5 | 200 | 290 | 13.0 | 260 | 375 |
| 8.0 | 210 | 305 | |||
| DIN1869 R3 RN | |||||
| Diameter (mm) | Flute Length (mm) | Overall Length (mm) | Diameter (mm) | Flute Length (mm) | Overall Length (mm) |
| 3.5 | 180 | 265 | 8.5 | 265 | 390 |
| 4.0 | 190 | 280 | 9.0 | 280 | 410 |
| 4.5 | 200 | 295 | 9.5 | 280 | 410 |
| 5.0 | 210 | 315 | 10.0 | 295 | 430 |
| 5.5 | 225 | 330 | 10.5 | 295 | 430 |
| 6.0 | 225 | 330 | 11.0 | 310 | 455 |
| 6.5 | 235 | 350 | 11.5 | 310 | 455 |
| 7.0 | 250 | 370 | 12.0 | 330 | 480 |
| 7.5 | 250 | 370 | 12.5 | 330 | 480 |
| 8.0 | 265 | 390 | 13.0 | 330 | 480 |
| Aircraft Extension (6″, 12″) | |||||
| Diameter (mm) | Flute Length (mm) | Overall Length (mm) | Diameter (mm) | Flute Length (mm) | Overall Length (mm) |
| 1/16″ | 7/8″ | 6″/12″ | 1/4″ | 2-3/4″ | 6″/12″ |
| 5/64″ | 1″ | 6″/12″ | 17/64″ | 2-7/8″ | 6″/12″ |
| 3/32″ | 1-1/4″ | 6″/12″ | 9/32″ | 2-15/16″ | 6″/12″ |
| 7/64″ | 1-1/2″ | 6″/12″ | 19/64″ | 3-1/16″ | 6″/12″ |
| 1/8″ | 1-5/8″ | 6″/12″ | 5/16″ | 2-2/16″ | 6″/12″ |
| 9/64″ | 1-3/4″ | 6″/12″ | 21/64″ | 3-5/16″ | 6″/12″ |
| 5/32″ | 2″ | 6″/12″ | 11/32″ | 3-7/16″ | 6″/12″ |
| 11/64″ | 2-1/8″ | 6″/12″ | 23/64″ | 3-1/2″ | 6″/12″ |
| 3/16″ | 2-5/16″ | 6″/12″ | 3/8″ | 3-5/8″ | 6″/12″ |
| 13/64″ | 2-7/16″ | 6″/12″ | 7/16″ | 4-1/16″ | 6″/12″ |
| 7/32″ | 2-1/2″ | 6″/12″ | 1/2″ | 4-1/2″ | 6″/12″ |
| 15/64″ | 2-5/8″ | 6″/12″ | |||
| * Custom-tailor would be available against customers’ requirements | |||||
HSS cobalt drill bits are more expensive than other drill bits, but it can drilling for a long lifetime, 135 point can easily drill on the metal prevent walking. High regrind, high hardness, high sharpness!
Best Cobalt Drill Bits can drill into stainless steel, iron, aluminum and other hard materials.
135 degree split point no need center punch tool, the ultimate in accuracy and performance.
High Speed Steel (HSS) Cobalt
We will tell you about why cobalt drill bit is the best for stainless steel, please click here!
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