Tool Post and Tool Holders No. 1 Turning & Tool Holder 1/2-1. 2 Boring, Turning & Facing Tool Holder 1/2-1. 4 Boring Bar Tool Holder 1-1/4 &1. 7 Universal Parting Blade Tool Holder 7/8. 10 Knurling, Facing & Turning Tool Holder 1/2-1. "Piston 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 ...