Automatic Die Head, Maximum Compatible Pipe Size 3/4 in, Minimum Compatible Pipe Size 1/2 in, Head Opening Type Semi-Automatic, Thread Type NPT, Compatible Thread Direction Right Hand, Compatible Dies 00031, 00227, Compatible Threader Type Threading Machine, Compatible Threader Series Collins, Compatible Manufacturer Part Number 00579, Through-the-Head Oiling Yes, Application Pipe, Die Head Type Snap-O-Matic, Die Material High Speed Steel