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Description
This premium quality, specialised, precision metal drill bit contains Cobalt for extreme performance and/or specialised materials. The Cobalt Metal drill bit is only suitable for advanced skilled level users.
- Made of High Speed Steel with 5% Cobalt content
- Precision ground
- Split point to prevent bit wandering
Metal drill bit selection chart
Matching the correct drill bit to the intended application will maximise the life of the bit.
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Plastics | Aluminium | Copper | Brass | Bronze | Plain Carbon Steel | Cast Iron | Stainless Steel | |
---|---|---|---|---|---|---|---|---|
Multi-purpose | ✔ | ✔ | ✔ | ✔ | ✔ | |||
Standard metal | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ||
Industrial Metal | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ||
Titanium | ✔ | ✔ | ✔ | ✔ | ✔ | |||
Turbo Metal | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | |
Cobalt | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
Recommended drilling speeds in Metal
Use the correct drill speed to ensure the ideal drill bit performance in the material being drilled.
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Drill Size | |||||||||||||
1mm | 2mm | 3mm | 4mm | 5mm | 6mm | 7mm | 8mm | 9mm | 10mm | 11mm | 12mm | 13mm | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Stainless Steel | 3182 | 1591 | 1061 | 795 | 636 | 530 | 455 | 398 | 354 | 318 | 289 | 265 | 245 |
Cast Iron | 4773 | 2386 | 1591 | 1193 | 955 | 795 | 682 | 597 | 530 | 477 | 434 | 398 | 367 |
Plain Carbon Steel | 6364 | 3182 | 2121 | 1591 | 1273 | 1061 | 909 | 795 | 707 | 636 | 579 | 530 | 490 |
Bronze | 7955 | 3977 | 2652 | 1989 | 1591 | 1326 | 1136 | 994 | 884 | 795 | 723 | 663 | 612 |
Brass | 9545 | 4773 | 3182 | 2386 | 1909 | 1591 | 1364 | 1193 | 1061 | 955 | 868 | 795 | 734 |
Copper | 11136 | 5568 | 3712 | 2784 | 2227 | 1856 | 1591 | 1392 | 1237 | 1114 | 1012 | 928 | 857 |
Aluminium | 12727 | 6364 | 4242 | 3182 | 2545 | 2121 | 1818 | 1591 | 1414 | 1273 | 1157 | 1061 | 979 |
Metal Drill Bit Speed vs. Size of Drill Chart
QUESTIONS & ANSWERS
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Can it be used to drill out a broken bolt
The Cobalt Metal bit will be able to