"Patented Twist Lock Guide System reduces backwalk of die guide and keeps dies centered while cutting threads. Reversible lever with 5 ratcheting arc eliminates hand-over-hand turning. Dies qty. 17, Taps qty. 17, Pieces qty. 40. Includes ratcheting T handle, S, M tap adapters, die holder, sliding T for adapters, thread gauge Tap holders tilt for easy access Ideal for working in tightly confined areas Comfort shape grips For taps from 0-1/2in. 3-12mm shanks from 110 to 280 Model KDS3886"