Steel Dragon Tools 37895 2" 12R HSS RH Pipe Dies fits RIDGID 12R 11R Die Head 37415 Ratchet Threader Fits 00-R, 11-R, 12-R, 0-R Ratchet Threaders Fits 30A, 31A, 3-way Pipe Threaders Replaces Ridgid Part # 37505