YG6 Tungsten Carbide Solid Carbide Stub Length Twist Drills Bit For Steel Metal
The hardness of it is about 89HRA. 10Pc Double End High Speed Steel HSS M35 Cobalt Stub Twist Drill Bits 3-5.2mm. 10Pc 3-5.2mm Double End High Speed Steel HSS M35 Cobalt Stub Twist Drill Bits UK. Stub Length.