Precision Twist Drill High Speed Steel 4ASM Heavy-Duty Screw Machine Drills
Manufactured to DIN lengths. NAS 907, Type C, 135 degree self-centering split point. Surface Finish: Black Oxide
- High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
- Oxide prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and iron based ferrous metals.
- Spiral flutes are constructed of a higher flute angle to remove chips easier.