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Capacity: 1/8-5/8"
TIR (inch): 0.0055; Mounting Size: 6JT
Arbor Shank Size: morse taper 4
TIR (inch): 0.0002
Product Included: One piece of 5/8'' Drill Chuck (202-5016); One piece of MT4 Arbor (202-1332)
Shars keyless ball bearing drill chuck is specifically engineered for heavy-duty, tight tolerance production drilling. Drill chuck designed for drilling applications on portable bench, floor type drill presses, mills, lathes & more. Ball bearing construction improves gripping force and drilling accuracy. Hardened ground center jaw to improve absolute straightness alignment and durability. Tightened and released by hand, they permit more rapid tooling changes to increase machining productivity. Self-tightening mechanism automatically increases the grip in proportion to the increase in torque during the drilling and avoids the tool slipping in a clockwise rotation.