hot sale! thread tap hss hand taps for screw thread insert with factory price Features: •Specially for wire thread inserts,key locking inserts. •Made from select high speed steel . •Use by hand or general machine tapping or with CNC machines. •Available in three chamfer lengths for through-hole or blind-hole tapping. •Available in a variety of platings. •Threads types:M,MF,G,BSW,UNC,UNF. • ...