M35 Cobalt Drill Bit Set For Hardened Metal And Stainless Steel, 99 Piece Tri Flat Shank High Speed Steel Twist Bits For Metalworking, One Sixteenth To Three Eighths Inch, Heavy Duty Plastic Index Storage Case

M35 Cobalt Drill Bit Set for Hardened Metals, 99-Piece
✔️ M35 cobalt steel bits, 135° split point, 2-flute, 99-piece set

This heavy-duty drill bit set is designed for drilling hardened metals, stainless steel, and other tough alloys. The tri-flat shank and precision bits fit securely in drill chucks or impact drivers, making it a practical choice for metalworking, fabrication, repair, and maintenance projects.

✅ M35 cobalt steel offers superior heat and wear resistance
✅ 135° split point and fully ground twist reduce walking on metal
✅ Dual-flute design clears chips fast for cooler, cleaner holes
✅ 99-piece set covers 1/16" to 3/8" with round and tri-flat shanks
✅ Upgraded storage case with partitioned index keeps sizes organized

💡 What is a cobalt drill bit set used for in metalworking? This handy set is designed for drilling hardened metals and stainless steel; it maintains cutting edge life under high heat.

- Handy for drilling hardened steel, stainless steel, and other tough alloys - Prolonged life due to M35 cobalt and oxide finish - Works with standard drill chucks and impact drivers for fabrication and maintenance tasks