Rikon's Z4 4-Jaw Chuck Kit 71-104 is an ideal wood lathe accessory for crafting bowls, platters, spindles, and decorative items. This self-centering chuck, precision-made from high tensile steel, boasts a geared jaw system for easy use and superior project-holding power. Redesigned chuck sliders ensure secure attachment of various compatible jaw set accessories. The meticulously machined chuck body and internal gearing guarantee smooth and reliable operation with the included special chuck key. It's best suited for larger lathes handling heavier wood, featuring a direct threaded 1-1/4' x 8TPI body for immediate mounting. With a diameter of 3-7/8' (98.5 mm) and a weight of approximately 3.8 lb, it includes a 50 mm (2') jaw set accessory, with additional sizes and shapes available. The kit comprises a Z4 4-Jaw Chuck, 50 mm (2') Jaw Set, Wood Screw RH, Chuck Key, T-handle T20 Wrench, and 3 mm Hex Wrench.