CA Piston Tool Post Set CNC High Precision Quick Change Lathe Holders 400 Series. Our part # ALL-47425. For use on lathes with 14″ – 20″ swing (defined as the diameter that can be turned over the bed). Precision-engineered to assure repetitive accuracy. Quickly and easily installed on an engine, bench, or turret lathe for a wide range of operations. All working parts precision ground and hardened. Completely sealed for maintenance free operation! Turning: The unequaled rigidity of this toolpost and holders insure smoother turning without chatter or vibration! Drilling: Set enables you to drill by power feed with your carriage, instead of hand operation or tailstock. Tool post locks holder in place with center hole piston. Includes a machineable base to make a T-slot nut to fit your lathe. 1 Turning & Facing Holder (1 tool capacity). 2 Boring Turning & Facing Holder (1 tool capacity). 4 Heavy Duty Boring Holder (1″ & 1-1/4″ tool capacity). 7 Universal Parting Blade Holder (7/8 tool capacity). 10 Knurling, Turning, & Facing Holder 1 tool capacity. We also sell custom tooling packages!