... roll taps 2.Material:HSSE,CPM,CPS 3.Coating:Tin,Ticn,Alsin-A,Bright etc 4.Thread type:Long ... or short Chamfer metric roll tapsFeatures: 1.Type:roll taps2.Material:HSSE,CPM, ... CPS3.Coating:Tin,Ticn,Alsin-A,Bright etc4.Thread type:Long ... JIS,DIN,ANSI,GB6.High precison,high effcience,long time work life7.Good wear resistance. If ...