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Jacobs Plain Bearing Taper Mounted Chucks, Heavy Duty
Jacobs plain bearing taper mounted chucks feature jaws center-ground for absolute straightness and alignment and a one-piece sleeve that eliminates cracks between driving teeth often found in other designs. Jacobs plain bearing taper mounted chucks feature through-hardened sleeve teeth, plus hardened nose and keyholes provide outstanding wear resistance. Each chuck 100% inspected for performance and precision. T.I.R. .004'' maximum at half capacity.
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