Jacobs Plain Bearing Taper Mounted Chuck, Heavy Duty Description: 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.

Technical Specifications: Chuck Size: 5/8” Model Number: 3A Minimum Capacity: 0.125” Maximum Capacity: 0.625” Mount: 3JT Key Number: K3 Closed Length: 3.81” Open Length: 2.87” Sleeve Diameter: 2.30” UPC: 95456062238