ball bearing - taper mount
ball bearing construction maximizes gripping force and drilling accuracy Jaws centre-ground for 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
fluted sleeve standard
Each chuck 100% inspected for performance and precision
t.i.r. 0.003" maximum at half Capacity
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