WD1225CO-25pcs fully ground twist drill bits set

DIN338 fully ground twist drill bits with amber finished surface, 118/135 degree point

Ideal for drilling on mild steel, copper, aluminium, zinc alloy etc.

Cobalt drill bits are excellent for drilling stainless steel

plastic box packing

Drill bits made from high speed steel with cobalt

Contents:

1, 1.5，2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8，8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13mm