... .Material:HSS,HSSE 3.Coated:Tin,Ticn,Bright,H,Alsin-A 4.Thread type:M,UNC,BSW M2X0.4 HSSCO spiral tap Features: 1 ... .Type:HSSE spiral fluted tap,machine tap,cutting tap.2.Material:HSS,HSSE3.Coating ... ,Stainless steel.8.Certificate:ISO 9001:2008 Related product: Forming tap If you have any question ,please do not hesitate to ...