GEARWRENCH® 114-Piece large ratcheting tap and die set SAE/metric, consisting of: 82800 large ratcheting T wrench, 82801 large locking tap adapter, 82802 large hex die adapter, 3881 medium ratcheting T wrench, 3883, medium tap adapter, 3882 small tap adapter, 3884 medium die adapter, 82803 male extension adapter, 82804 female extension adapter, sliding T for adapters, 4 mm hex key, 5 screw extractors, metric thread gauge, SAE thread gauge, 48 taps and 48 dies. Complete set of 48 taps and 48 dies, plus small, medium and large system of ratcheting T handles, locking tap adapters and hex die adapters. Taps and dies are made from high-quality carbon tool steel. Gear wrenches ratcheting -I handle systems are perfect for the master Mechanic or Machine Shop. Set comes with blow molded case for safe and organized storage. 5 degree ratcheting arc with reversible lever eliminates hand over hand turning. Twist Lock guide system reduces back walk of die guide extension adapters providing 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 18 mm sizes.