Piston Type Quick Change Tool Set AXA 6-12 Inch. Piston Type Quick Change Tool Set AXA 6-12 Inch is a 6-piece quick change tool post set designed for lathes with a 6″ to 12″ swing. This AXA piston-type 250-100 series setup is built for fast, convenient tool changes while helping maintain consistent setup and repeatable positioning on compatible machines. Made from metal with hardened, precision-ground working parts, this tool post set is intended for durability and accurate performance in the shop. It uses an M14 x 1.5 center stud thread and is suitable for lathe center heights from 0.6″ to 1.75″ measured from the top compound surface to the lathe center line. AXA size quick change tool post set for 6″ to 12″ swing lathes. Piston type 250-100 series design for efficient tool changes. M14 x 1.5 stud thread through the center of the tool post. Compatible with many lathes including South Bend 9″ & 10″, Atlas 10″ & 12″, Delta 10″ & 11″, Nardini TT1000 & TT1200, and other import lathes. Interchangeable with Aloris, Dorian, and Phase II. Hardened and precision ground working parts for reliable use. Item weight: 11.68 lb. This set is a practical choice for machinists looking for a compatible quick change tool post system that supports efficient workflow and dependable fitment on a wide range of smaller to mid-size lathes. What is in the Package. 1x Piston Type Quick Change Tool Set AXA 6-12 Inch. 6pc AXA QUICK CHANGE TOOL POST FOR LATHE WITH 6″ TO 12″ SWING. PISTON TYPE 250-100 SERIES, the thread size of the stud that runs through the center of the tool post: M141.5. Suitable for lathe center height 0.6 – 1.75″ (top compound surface to lathe center line), such as: South Bend 9″ & 10″, Atlas 10 & 12″, Delta 10 & 11 Nardini TT1000 & TT1200 and many other import lathes. Interchangeable With Aloris, Dorian & Phase II. All working parts hardened and precision ground.