... A,H,TICN,Bright 4)High precison Alsin-A coated metric machine tapFeature1.Material:High speed steel2.Standard:JIS3.Size: ... Standard (metric,UNC,W...)4.Applicable Industry:Automobile and Aircraft Industry,Electronics ... ,etc.5.Work material:Medium Carbon Steel,alloy steel, cast iron, cooper, aluminum, etc.6.Good machinability, wear-resistant teeth, ...