1.Material:HSS 2.No protective;with protective 3.Fully ground 4.No coated (upon your need) 5.High precision

1.Material: high speed steel(HSS)

2.No coated or coated upon your requirement

3.Fully ground

4.Two kinds of products: with protective(B model) & no protective(A model)

5.own research and development department, professional QC department

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