Manual Threader Die Head Maximum Compatible Pipe Size 1 in Minimum Compatible Pipe Size 1 in Head Opening Type Manual Thread Type NPT Compatible Thread Direction Right Hand Compatible Dies Manual Threader Compatible Threader Type Manual Threader Threading Machine Compatible Mfr Model No 37777 38550 44913 44918 44923 44928 Through-the-Head Oiling No Compatible Grainger Part Number 1VUT7 5A189 Die Head Type 11R Die Material Alloy Steel Die Sizes 1 in Fits Brand Ridgid