HSS MATERIAL; NPT THREAD SERIES; 11-1/2 TPI; 1 INCH THREAD SIZE; SQUARE DIE EXTERNAL SHAPE; DIRECTION OF CUT RIGHT HAND; USED ON 30A/31A 3-WAY PIPE THREADER OR OO-R/11-R/12-R/O-R RATCHET THREADER; WARRANTY LIFETIME LIMITED; 12-R MODEL