12-Piece Cobalt Drill Bits Set for Metalwork, 17/64in
✔️ M2 HSS, HRC 62-63, 135° tip, 3-flat shank, 4.125in length
These cobalt drill bits are high-speed steel tools designed to cut metal with precision. The 12-piece set features a durable Black and Gold coating and is ideal for automotive work, home improvement, and workshop projects. Not for masonry or concrete.
✅ 12-piece set
✅ Diameter 17/64 inch
✅ Total length 4-1/8 inch
✅ Working length 2-7/8 inch
✅ 135-degree point
✅ M2 High Speed Steel with black and gold coating
✅ ANSI spec shank: 3-flat
💡 What is a cobalt drill bit set best used for?
These bits are ideal for fast, durable metal drilling and precision finishing.
- Handy for drilling hardened metals, alloys, and stainless steel
- Self-centering 135-degree tip reduces walking and improves accuracy
- Heat-resistant coating extends life in high-speed cuts
- Use on metal, wood, plastics; not for concrete or masonry
