Check the listing for details. 10" ( 10 inch) 3 Jaw Self Centering Lathe Chuck High Quality Precision. Condition: New. Listed at 268.95 USD. Product Description: High precision self-centering design. Superior gripping force to meet precision machining demands. Flimsy parts are specifically engineered by quenching process to enhance durability.Short cylindrical center mounting.One set of solid steel internal jaws, one set of solid steel external jaws, and chuck wrench are also included in the package.Body is made of high quality nodular cast iron suitable for high rotation speed. Product Features: Chuck Outside Dia. : 10" (250mm).Chuck Body Thickness: 3-1/8" (80mm).Center Thru Hole Dia.: 3.1496" (80mm).Bolt Circle Dia.: 8.8976" (226mm).Mounting Thread (z-d): 3-M12 x 1.75.Max RPM: 2,400.Max Input Torque: 705 lbs. Internal Jaw Clamping Range: 0.2362" (6mm) -4.3307" (110mm).Internal Jaw Jamming Range: 3.1496" (80mm) - 9.8425" (250mm).External Jaw Clamping Range: 3.5433" (90mm) - 9.8425" (250mm). Accuracy: 0.002"(tested vertical