SHARS Piston Quickly Changing Tool Posts 13-18 Lathes And Tool Holder Sets 6PCS/ Set #300 CXA. Suitable for lathe center height 1.125 - 2.125 (top compound surface to lathe center line). Includes: 250-300 Tool Post, 250-301 Holder, 250- 302 Holder, 250-304 Holder, 250-307 Holder, 250-310 Holder. Set Screw Thread Size: M10x25. Increases production of lathe operations. Change tools quickly and easily. No time wasted with shims. Tool Post and Tool Holders No. Use tool bit 1/2 to 3/4. 250-302 Boring, Turning Tool Holder, use tool bit up to 3/4 an. Round shank boring bars up to. 250-304...