Material: The lathe chuck jaw is made of premium zinc alloy for high strength and durability, wear-resistant, solid and durable. High Efficiency: The mini lathe chuck with high centering accuracy as well as large clamping range, repeated positioning, your lathe can work with higher efficiency. Compact Size: The compact chuck is small in size, easy to use. Connecting Rod Size(L x W): Approx. 5.2cm x 6mm. Connecting Thread: M12 x 1mm. Application: Three or four jaw design, self-centering, widely used for woodworking. Features: High strength and hardness, durable and sturdy, small size, good precision and good appearance. Specifications: Material: High-grade steel Color: Silver Connecting Rod Size(LxW): Approx. 5.2cm x 6mm/2.05 x 0.24in Connecting Thread: M12*1mm Package Content:1 Connecting Rod.1 Three-Jaw Chuck.2 Short Sticks. Yeuri