New – Never used – Genuine Jacobs drill chucks. 41 drill chuck 0 – 3/8 capacity with Jacobs key. Mounted on a new MT3 arbor. Keyed Drill Chuck, Medium Duty, Bearing Type Plain Bearing, Key Number K30, Closed Length 2.50 In, Open Length 2.05 In, Chuck Diameter 1.43 In, Capacity Max. 0.375 In, Capacity Min. 0.04 In, Construction Steel. 26 drill chuck 1/16″ – 1/2″ capacity with Jacobs key. This industrial quality light duty threaded mount professional key type plain bearing drill chuck with fully hardened and ground working components offers exceptionally high accuracy, gripping power and durability on all types of industrial power and machine tools. Jaws center-ground for absolute straightness and alignment. One-piece sleeve design eliminates cracks between driving teeth. Sleeve teeth, nose piece and keyholes are through hardened, providing outstanding wear resistance. Smooth and ground fluted sleeve standard. T. I. R. 0.006″ Maximum at 1.50″ 0.063 in. Minimum capacity 0.500 in.