36 IND CHUCK 3JT MOUNT 6309 & K4 KEY

Features : 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 | Each chuck 100% inspected for performance and precision | T.I.R. 0.004 in maximum at half capacity