RIDGID REPLACEMENT THREADING DIE *For Ridgid No. OOR threading set (Ace No. 21632) and ratchet threaders *Right hand thread, national pipe taper *Carded *1/2" Size *14 Threads/InchDies - Pipe Threading *Type: Pipe *Thread Size: 1/2-14 *For Use With: OO-R, 111-R, 12-R, O-R, 11-R Ratchet Threaders or 30A, 31A 3-Way Pipe Threaders Material: Alloy Steel