1.Spiral tap, hss tap, threading tool 2. material: hss, hss co, 3. thread type:M,UNC,BSW with JIS We are a cutting tool manufacturer, can supply kinds of sprial taps.1.Spiral tap, hss tap, threading tool2. material: hss, hss co,3. thread type:M,UNC,BSW with JIS4. coating:Tin, ticn, bright etc.5.platform: tapping machines, CNC, Auto lathe,machine center.6.certificate:ISO 9001:2008 HSS hand Tap