CNC Spindle Motor & Tool Parts. PISTON TYPE Quick Change Tool Post Holder 250-100 kit for 12 Lathe Machine. Piston Quick Change Tool Post Holder 250-100 kit Lathe 12 Accessory. 1 x 250-100 Quick Change Tool Post. 1 x 250-101 Turning Tool Holder. 1 x 250-101A Boring, Turning Tool Holder. 1 x 250-104 Heavy Duty Boring Bar Holder. 1 x 250-107 Parting Blade Tool Holder. 1 x 250-110 Knurling and Turning Tool Holder. Please check the following dimension and detail parameters for the toolholders. Feedback is very important to us. So that we can address your concerns. It is ...