•General model : It is the general KS and JIS standard type chuck used to attach to lathe for general use. To attach it to lathe a additional adapter is needed. •High Quality & Long Durability : Internal stress and deformation have been precluded bu using high quality cast body. The major parts are made of heat-treated alloy steel, and good durability has been achieved due to extended abrasion resistance and improved quality. Also, stong power and big jaw width enhance the safety. •Compatibility : uniformity in quality and the exact size management make the exchange of major parts possible. •Parts : A fastening handle and mounting screws are included as standard parts. •Customization : For the large scale over 40", customized manufacturing is available.