Thread cutter set to approved standards 1/2'' to 2'' NPT on steel pipe. This ratchet threader has quick change die heads with positive octagonal universal drive for secure hold. The longer pipe guide allows for perfect centering. The precision tempered steel dies have optimized cutting geometry making it easy to start the cut and provide excellent chip discharge. The secure hold with locking retainer make insertion and removal of die heads simple. Slim, compact shape has angle requirements of 22.5º degrees so you can get those hard to reach places. Set includes ratchet handle, die heads for 1/2'', 3/4'', 1'', 1-1/4'', 1-1/2'', and plastic carrying case.