13PCS Cobalt Drill Bit Set - Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits - with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron - 5% Cobalt HSS-CO
- ...ability. The Cutting Edge Is Hardened and Honed for Sharpness..
- Flutes Form - 2 Flutes form Helps Clear Chips and Debris Away from The Bit, Decreasing Friction and Heat for A Faster, Cooler Drilling Process, Chatter-Free Design with Staggered Cutting Teeth Ensure The Precise Countersinking and Hole Smooth Clean..
- For Metalworking - Particularly Successful In Cutting Through Hard Metals(Hardness Less Than HRC38°) Such As Stainless Steel and Cast Iron, Although They Can Be Used for Softer Materials Like Copper and Aluminium, Too. Not for Hardened Steel and High Carbon Steel..