Overview Reviews Product Description Ridgid 37890 - 1-1/2" NPT High Speed Pipe Dies 11-1/2 TPI-RH 12-R HS Pipe Dies For 0-R, 11-R, 00-R, 111-R, 12-R, 30-A and 31-A Threaders Product Videos Custom Field Condition New Product Reviews Write a Review Write a Review × Ridgid Tools Ridgid 37890 - 1-1/2" NPT High Speed Pipe Dies Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *