Pipe Threading Die Heads Manual Threader Die Head Die Head Opening Type Manual For Nominal Pipe Size 1/2 in to 3/4 In. Threads per Inch 14 Pipe Thread Type NPT Thread Direction Right Hand For Use With Mfr No 00575 For Use With Pipe Threader Series COLLINS(R) CLASSIC 22A Die Material/Type High Speed Steel Oil Through Head Yes Features Automatic Through The Head Oiling Exclusive Snap System Allows Fast Die Settings Under 3 sec. Automatic Die Head