Cobalt Drill Bit Set 115 Pc Pro Grade Heavy Duty High Speed Steel M35 With Durable Round Shank For Hardened Steel Wood Plastic Sheet Metal Includes Metal Index Storage Box

Premium 115-Piece Cobalt Drill Bit Set with M35 Tooling
✔️ 115 pc kit, M35 cobalt alloy, heavy-duty, round shanks, metal box

This 115-piece cobalt drill bit set targets metalworking and demanding projects. It covers drilling through hardened steel, stainless steel, cast iron, wood, and plastics, and comes in a rugged metal index storage box for easy transport and organization.

✅ 29 fractional sizes: 1/16" to 1/2" in 1/64" increments (1.59 mm to 12.7 mm)
✅ 26 letter-size bits: A to Z for broad material coverage
✅ 60 wire-size bits: #1 to #60 for precise hole sizing
✅ 135-degree split point with a self-centering round shank to prevent walking
✅ 5% cobalt alloy for wear resistance on tough metals and plastics
✅ Includes a sturdy metal index storage box with belt clip for portable use

💡 What is a cobalt drill bit set best used for in metalworking and fabrication? This handy kit is designed for tough materials and precise drilling to extend bit life. - Highly effective for drilling stainless steel, cast iron, and titanium alloys - Cobalt content increases wear resistance and bit life in hard materials - Split-point design reduces walking for precise hole starts - Portable metal index box keeps bits organized on job sites