12-R NPSM-1 (37580) 1 in. Exposed Manual Ratchet Threader Die Head, Alloy RH, NPSM is designed for use with the Model 700 hand-held power drive. It is also suitable for use with the 12-R (30118) ratchet and handle assembly. The NPSM die head has a nominal pipe size of 1 in.








