WD1225TRI-25pcs fully ground twist drill bits set

WD1225TRI-25pcs fully ground twist drill bits set

DIN338 fully ground twist drill bits with amber and black surface treatment, 118/135 degree point

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

triangle shank

this kind of twist drill bits have multi-point tip, perform more faster drilling speed.

plastic box packing

Drill bits made from high speed steel

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