Cobalt Drill Bits
The 135° angle of the cutting point is ideal for drilling steel and other tougher materials. The split point prevents the drill from wandering or running off the starting point.
Ideal for:
- Stainless steel
- High strength steels
135° Split Point
Precision Ground
Precision Ground Cobalt drill bits are stronger and harder than Titanium bits but are more brittle and should be handled with care. Cobalt drill bits can drill at much higher temperatures while maintaining sharpness. It can therefore be used to drill stainless steel and other hard materials.
The 135° angle of the cutting point is ideal for drilling steel and other tougher materials. The split point prevents the drill from wandering or running off the starting point.
The main disadvantage of cobalt steel is that it is more brittle than standard HSS and can break if used incorrectly.
General tips:
It is advisable to use in a drill press where more controlled pressure with added stability is available.
Sizes:
| Code | Description | Size | Qty |
| 4AA10U | D/BIT COBALT | 1.0mm | Q:2 |
| 4AA20U | D/BIT COBALT | 2.5mm | Q:1 |
| 4AA30U | D/BIT COBALT | 4.0mm | Q:1 |
| 4AA40U | D/BIT COBALT | 5.2mm | Q:1 |
| 4AA50U | D/BIT COBALT | 7.5mm | Q:1 |
| 4AA60U | D/BIT COBALT | 10.5mm | Q:1 |
| 4AB10U | D/BIT COBALT | 1.2mm | Q:2 |
| 4AB20U | D/BIT COBALT | 2.8mm | Q:1 |
| 4AB30U | D/BIT COBALT | 4.2mm | Q:1 |
| 4AB40U | D/BIT COBALT | 5.5mm | Q:1 |
| 4AB50U | D/BIT COBALT | 8.0mm | Q:1 |
| 4AB60U | D/BIT COBALT | 11.0mm | Q:1 |
| 4AC10U | D/BIT COBALT | 1.5mm | Q:2 |
| 4AC20U | D/BIT COBALT | 3.0mm | Q:1 |
| 4AC30U | D/BIT COBALT | 4.5mm | Q:1 |
| 4AC40U | D/BIT COBALT | 5.8mm | Q:1 |
| 4AC50U | D/BIT COBALT | 8.5mm | Q:1 |
| 4AC60U | D/BIT COBALT | 11.5mm | Q:1 |
| 4AD10U | D/BIT COBALT | 1.8mm | Q:2 |
| 4AD20U | D/BIT COBALT | 3.2mm | Q:1 |
| 4AD30U | D/BIT COBALT | 4.8mm | Q:1 |
| 4AD40U | D/BIT COBALT | 6.0mm | Q:1 |
| 4AD50U | D/BIT COBALT | 9.0mm | Q:1 |
| 4AD60U | D/BIT COBALT | 12.0mm | Q:1 |
| 4AE10U | D/BIT COBALT | 2.0mm | Q:2 |
| 4AE20U | D/BIT COBALT | 3.5mm | Q:1 |
| 4AE30U | D/BIT COBALT | 5.0mm | Q:1 |
| 4AE40U | D/BIT COBALT | 6.5mm | Q:1 |
| 4AE50U | D/BIT COBALT | 9.5mm | Q:1 |
| 4AE60U | D/BIT COBALT | 12.5mm | Q:1 |
| 4AF10U | D/BIT COBALT | 2.2mm | Q:1 |
| 4AF20U | D/BIT COBALT | 3.8mm | Q:1 |
| 4AF40U | D/BIT COBALT | 7.0mm | Q:1 |
| 4AF50U | D/BIT COBALT | 10.0mm | Q:1 |
| 4AF60U | D/BIT COBALT | 13.0mm | Q:1 |
Sets:
| Code | Description | Size | Qty |
| 4AA70U | D/SET COBALT | 3;4;5;6;8mm | Q:5 |
| 4AB70U | D/SET COBALT | 5;5.5;6;8;10mm | Q:5 |