hand operated chucks : the conventional range of hand operated chucks. these sturdily built chuck delivers high gripping force. the conventional bevel gear and scroll have been replaced by a worm & worm wheel to operate the jaws. the worm & wormwheel and the circular cam gives the chuck an amazingly high mechanical advantage and gripping power. download data hand operated independent jaw chuck : gmt hand operated independent jaw chuck is used to hold irregular shape of components and concentricity is adjustable as required. it delivers high gripping force. download data