Material: High Speed Steel/Cobalt: 8% High Cobalt
Application: Copper, iron, aluminum, wood, stainless steel, metal drilling ,Concrete ，Wall
Fit for Equipment: Use on electric drills, bench drills, etc.
Package Included:
13pcs (1.5mm-6.5mm)
Features:
1. high speed steel, 8% high cobalt, more durable and shaper, easy to drill solid material, such as 304 stainless steel.
2. 3 edge cutter head and 135 degree split point design, make drilling easier, easy to chip, no slipping.
3. High heat treated hardness 68-70 HRC.
4. Can be used radial drill, bench drill or hand drill chuck for drilling operations.