Feature: 1)HSS forming tap,thread tap 2)Type:M,UNC,UNF, ... ,Bright HSS forming tap,thread tap,roll form tap Feature:1.Material:M42(HSS Co8%),CPM,CPS,imported from Germany2.Standard ... type: Metric,UNC,UNF,BSW8.Sample is available product advantages:1.chipless tapping2.stronger threads3.better thread gaging4.longer tap life5 ...