used in machine tool fittings and is suitable for clamping various industrial parts. Premium Material: Made of quality zinc alloy material, corrosion resistance, not easy to rust, can provide long service time. Fine Durability: High strength and hardness, small size, wear resistance and with fine durability. Accurate: Compact in size, easy to be used and with a high centering precise as well as a large clamping ranges. Easy to Use: The chuck is equipped with special locking structure, save effort when tightening, very convenient. Functional Design: Innovative design, self-centering, widely used for woodworking lathe. Three Specifications: Three specifications are optional, you can choose chuck-drill connecting rod, 3-Jaw chuck and connecting rod, 4-Jaw chuck and connecting rod according to your demands. Wide Ranges of Applications: It is mainly used in machine tool accessories,which is suitable for clamping a variety of industrial parts. Specifications:Material: zinc alloyTypes: Connecting Rod, Connecting Rod 43;Three Jaw Chuck, Connecting Rod 43;Four Jaw Chuck (optional)Package size:Connecting Rod: 50 * 12 * 12mm / 1. 97 * 0. 47 * 0. 47inConnecting Rod 43;Three Jaw Chuck: 60 * 50 * 50mm / 2. 36 * 1. 97 * 1. 97inConnecting Rod 43;Four Jaw Chuck: 60 * 50 * 50mm / 2. 36 * 1. 97 * 1. 97inPackage weight:Connecting Rod: 31g / 1. 09ounceConnecting Rod 43;Three Jaw Chuck: 220g / 7. 76ounceConnecting Rod 43;Four Jaw Chuck: 225g / 7. 94ouncePacking List (E22732-1):1 * Connecting RodORPacking List (E22732-2):1 * Connecting Rod1 * Three Jaw Chuck2 * Short SticksORPacking List (E22732-3):1 * Connecting Rod1 * Four Jaw Chuck1 * Wrench