... as Ridgid, Rex, Asada, 2)All kinds of Chinese threading machine dies availble we have dies as below:KSU 1/2 ... /4",1"-2"(1"-11'2",11/2"-2"), 21/2"-3", 21/2"-4",5"-6"Rex in Metric, M8---M35Ridgid ... : 1/4"-3/8",1/2"-3/4",1"-2", 21/2 ... "-3_,21/2"-4"Calm shell packing Pipe threading machine dies