Threading Machine Die Head Maximum Compatible Pipe Size 2 in Minimum Compatible Pipe Size 1 in Head Opening Type Semi-Automatic Thread Type NPSM Compatible Thread Direction Right Hand Compatible Dies 301 Compatible Threader Type Threading Machine Compatible Threader Series Collins Compatible Mfr Model No 00579 Through-the-Head Oiling Yes Application Pipe Die Head Type Snap-O-Matic For Use With Collins 22A Machines Includes 1 Set of Dies