Lathe Chuck 3 Jaws/4 Jaws Manual Self-Centering Mounting Bolt for Grinding Milling Turning Machine<br> The self-centering lathe chuck is composed of a strong zinc alloy body and steel jaws so that it can withstand harsh working environments. It features a wide clamping range and high accurate. So you can deal with a variety of materials after fastening it.<br> Features:<br> The lathe chuck body is made of fine quality zinc alloy. The surface is nicely ground with a nice radius on all external edges.<br> Efficiently push the material to be processed from all directions simultaneously until it is held tightly.<br> The lathe chuck of the tolerance ≤0.002 inch works with few vibrations, ensuring accurate finished parts.<br> It is easy for you to adjust the jaws by scrolling the chuckkey. Quicker installation leaves more time for work.<br> The chuck has internal and external jaws. This chuck has a large clamping range and is suitable for clamping a variety of industrial parts.<br> The manual self-centering chuck is compact and convenient, and it is the perfect choice for your lathe machine, grinding machines, or milling machines.<br> Specifications:<br> Type: 3 jaws, 4 jaws (optional)<br> Connecting shaft: 3.17mm, 5mm, 8mm (optional)<br> Material: zinc alloy+stainless steel<br> Chunk thread diameter: 12mm<br> Chunk threadpitch: 1mm<br> Chunk diameter: approx. 50mm / 2.0in<br> Package size: 90 * 70 * 45mm / 3.5 * 2.8 * 1.8in<br> Package weight: 226g / 8.0ounce<br> Packing List:<br> 1 * Chunk<br> 1 * Connecting Shaft<br> 2 * Screws<br> 1 * Wrench for Chunk<br> 1 * Wrench for Connecting Shaft Screws<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin