xxWedge Type Tool Posts are precision engineered to assure repetitive accuracy. Advanced design provides built in quick tool changing versatility with positive rigidity to meet the most exacting working tolerances. Quickly and easily installed on an engine, bench or turret lathe for a wide range of operations, from fine precise work to heavy duty cutting. All working parts hardened and ground. Maximum rigidity for chatter-free performance. No time wasted with shims. Speed up lathe operations 90%. Completely sealed for maintenance free operation. Takes only a few seconds to change tools. Tool Specs: A: 2-1/2", B: 3-7/8", C: 2-1/4", D: 9/16", E: 1-3/8", H: 4-11/16", R: 5-3/4", For Swing Up to: 12".