Description
1/4" COBALT DRILL BIT
- Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
- Spiral flutes are constructed with a higher flute angle to remove chips more easily.
- Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.