Standard, Threading Tools, ACME Threads, 0.490" Min Bore dia, Offset: 0.060"Mfr #: IAT 2000 10X Designed for cutting pitch specific ACME threads Polished split face for improved edge retention and chip evacuation while reducing galling Split geometry makes the tool as rigid as possible Lockdown flat automatically locates tool on center AlTiN coated option provides added lubricity and increased wear resistance in difficult to machine materials