Pipe Threading Die Heads, Threading Machine Die Head, Die Head Opening Type Automatic, For Nominal Pipe Size 1 in to 2 in, Threads per Inch 11 1/2, 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