Feature: 1)HSS thread tap,roll form tap 2)Thye:M,UNC,UNF,W 3)Material:HSSE, ... ,ALSIN-A,TICN,Bright HSS thread tap,threading tool,roll form tap Feature:1.Material:M42(HSS Co8%),CPM,CPS,imported ... hole6.Coolant:oil coolant7.Thread type: Metric,UNC,UNF,BSW8.Sample is available product advantages:1.chipless tapping2.stronger threads3.better ...