Gearwrench 5 Pc. Ratcheting Tap And Die Drive Tool Set - 3880 Patented Twist Lock Guide System reduces back walk of die guide and keeps dies centered while cutting threads. Reversible lever with 5deg ratcheting arc eliminates hand-over-hand turning. Ideal for working in tightly confined areas. Pieces (qty.): 5. Die adapter works on round and hex shaped dies Ratcheting T-handles wind dies with a 5 swing arc and have a reversing lever to eliminate hand-over-hand turning Twist Lock guide system reduces the ?walk back? of the die guide and keeps the dies centered while cutting