[Application]: Four-jaw self-centering design, widely used for woodworking lathes. Suitable for machine tools and accessories for general lathes, economical CNC lathes, grinding machines, milling machines, drilling machines, and other machine accessories. [Compact Size]: Compact chuck with small volume, easy to use. [Material]: Made of high carbon steel material, corrosion-resistant, not easy to rust, and sturdy. [Features]: High strength and hardness, small size. [Accurate]: High centering accuracy and large clamping range. Type: Machine Chuck Type: Z011A Four Jaw Color: Silver Material: Zinc alloy Size: Connecting Rod Size (LxD): About 5.2 cm x 6 mm / 2.05 x 0.24 inch Connecting Thread: M12x1mm Package Contents: 1 x Chuck Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allowed error is +/- 1-3 cm.