Medium duty models for threaded mounting.Jaws center-ground for absolute straightness and alignment.One-piece sleeve eliminates crack between driving teeth often found in other designs.Through-hardened sleeve teeth, plus hardened nose and keyholes provide outstanding wear resistance. 5.Each chuck 100% inspected for performance and precision.T.I.R. .004 maximum at half capacity.
Item# : SPM18240620004
Model # : JCM6289