Description 5 degree ratcheting arc with reversible lever eliminates hand over hand turning Patented Twist Lock guide system reduces ?back walk? of die guide Extension adapters provide access in tight confined areas. Length of tap and die system can be extended by combining adapters and any 3"8 drive extension. Tap holders tilt down for easy access keeping taps secure and organized Works with round and hex shaped dies Includes 4-40 to 3"4 and 3"to 1"mm sizes