Min. Order Reference FOB Price
5 Pieces Negotiable
Product Description
Grewin-High Performance Cutting 3D Carbide Drill Tungsten Carbide Steel Shank Coated Drill Bits with External Coolant for Stainless Steel Metal 1. Raw micro grain material, high hardness and T.R.S a, Co: 10%,Wc:90% b, TRS: >3600 N/mm2 c, HRA: 91.8-92.4, HRC:45-50/55-60/65/68 d, Grain size: ...