This Quick Change Piston Type Tool Post & Tool Holder Set is designed for use with 12" lathes, providing a versatile and efficient solution for various machining tasks. This set comes complete with five quick-change tool holders, making it easy to switch between different tools and setups, thereby speeding up production and enhancing productivity. Features Complete with 5 quick change tool holders Supports turning and facing: 3/16" - 1/2" tool bit Suitable for boring, turning, and facing: 7/16" shank Equipped with a heavy-duty boring bar: 5/8" shank Includes knurling, turning, and facing: 3/16" - 1/2" tool bit Easy tool setup to speed production Specifications Type: Piston Tool Post & Tool Holder Set Lathe Size: 12" Tool Bit Size (Turning and Facing): 3/16" - 1/2" Shank Size (Boring, Turning, and Facing): 7/16" Shank Size (Heavy Duty Boring Bar): 5/8" Weight: 5.5 kg Comes With 5 Quick Change Tool Holders Tool Bit for Turning and Facing (3/16" - 1/2") Boring, Turning, and Facing Shank (7/16") Heavy Duty Boring Bar (5/8" shank) Knurling, Turning, and Facing Tool Bit (3/16" - 1/2")