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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
please do not continue to use it if there are [Collapse mouth/cracks] during use to prevent safety hazards and damage to the drilling material
-We are professional manufacturer
If the margin is large
especially for rough machining process
BB Countersink Drill Tipped Carbide 90 Degree Diameter:50mm please do not continue toBB Brazing Countersink Cutter In order to ensure the firmness of the drill bit, we adopted a brazing method to weld carbide inserts. In this way, the drill bit can process harder metal (compared with HSS countersinks). But this will make the appearance of the drill bit not good looking. We hope you don't mind. Because the cutting edge of carbide material is very crisp, them machining environment needs to be stable to reduce beating. It performs well
