Jacobs 31090 Precision 3/8" Keyed Drill Chuck 1/2-20MNT 32oz leather and most craft-type materials

leather and most craft-type materials

And of course

Overall dimensions:

1-1/8" diameter

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Jacobs 31090 Precision 3/8" Keyed Drill Chuck 1/2-20MNT 32oz leather and most craft-type materialsThe Jacobs Plain Bearing chuck is the worlds most widely used for medium or heavy duty portable, bench, or floor mounted power tools. This industrial quality chuck, with fully hardened and ground working components, offers exceptionally high accuracy, gripping power and durability. For use on threaded and taper mounted spindles. Bearing Type: Plain Chuck Model: 31090 Max Capacity: 3 8" Sleeve Finish: Fluted Chuck Key: K30 Chuck Mount: 1 2" 20