Nipple Chuck Compatible Threader Grainger Part Number 4ERZ4 4ETA1 60PZ78 Compatible Threader Manufacturer Part Number 63004 63005 63006 Compatible Threader Series Ropower 50R Supertronic 2SE Supertronic 4SE Product Type Nipple Chuck Maximum Compatible Pipe Size 3/4 in For Use With Compact Pipe Threading Machines