PT 37405 Die Head 1-1/4"-Fits Ridgid 12R Manual Threader and Ridgid 700-Includes Dies 1-1/4" Drophead die head with Right handed HSS Dies. PT 37405 die head fits your rigid pipe threader. Fits RIDGID  700 Hand Power Pipe Threader. PT is a quality alternative to RIDGID  Replacement Parts.