29 Piece M42 Cobalt Screw Machine Drill Bit Set Stub Tip 1/16 To 1/2 Inch Range With 64ths For Stainless Steel And Hard Metals Built For Tough Jobs In The Shop Or On The Jobsite ASTCO Series

Premium 29-Piece M42 Cobalt Drill Bit Set for Hard Metals
✔️ 135° split point, cobalt steel, 1/16 to 1/2 inch sizes, metal case

This 29 piece drill bit set features M42 cobalt steel bits with a 135-degree split point, designed for tough metals like stainless steel and nickel alloys. The round shanks fit a wide range of toolholding systems, and the kit comes in a sturdy metal case for portable shop or jobsite use.

✅ 29 piece set in fractional sizes 1/16 to 1/2 inch in 1/64 inch increments
✅ Cobalt steel with 135° split point for hard metals
✅ Gold oxide style coating (thinner than black oxide) to identify cobalt tools
✅ Round shanks fit a wide range of toolholding systems
✅ Self-centering design reduces thrust and follows National Aerospace Standard 907
✅ Solid metal case for portable shop or jobsite use

💡 What is a common question people ask about cobalt drill bits for hard metals?

This handy guide helps buyers pick the right bit for stainless steel and other tough metals. - For drilling stainless steel and nickel alloys
- Size range 1/16 to 1/2 inch in 1/64 inch increments
- 135° split point and cobalt steel for fast, clean holes
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