21/64″ Heavy Duty Cobalt Drill Bit
21/64″(8.33mm) Heavy Duty Cobalt Drill Bit.
- Bit Size: 21/64″(8.33mm)
- Decimal Equivalent: 0.3281″(8.33mm)
- For Drilling High Tensile Alloys, High Nickel Stainless Steels and Other “Hard to Machine” Metals
- Manufactured from M42 Cobalt Steel
- Extra Heavy Web Geometry Gives the Drill Extreme Rigidity, Requiring Greater Feed Pressure to Penetrate
- Cobalt Drills are Generally Run at Slower Speeds and Higher Feeds than High Speed Drill Point Drills