Specifications:Capacity: 1.5mm-10mmMounting Thread Diameter: 3/8inch-24UNFChuck Key Size : 55 x 33 x 13mm/2.17 x 1.3 x 0.51"(L*W*H) Package Contents:1 x Drill Chuck1 x Chuck Key Description:Clamping Range:1/16-3/8" / 1.5-10mmClassic keyed 3-jaw design can easily clamp twist drill bits and step drill bits with 1/16-3/8" shankThreaded Adapter: 3/8"-24UNF mounting thread, can easily transform power impact wrench to a drillConstructed from premium chrome vanadium steel for durability.
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