29pcs cobalt drill bits set
Danyang Boyu Tools Co., Ltd. [China]
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29pcs cobalt drill bits set
Material: Co5%
Fully ground from solid material
29pcs cobalt drill bits set
1.Material: M35,Co5%
2.Size: 1/16"-1/2"*1/64"
3.Fully ground from solid material
4.High heat resistance for particularly tough metal drilling.
5.For particularly tough or hard metal drilling applications,such as stainless,Cr-Ni and special acid resistance steel.