Specifications:Capacity: 1.5mm-13mmMounting Thread: 1/2-20UNFChuck Key Size: 78 x 40 x 17mm / 3.07 x 1.57 x 0.67inch(L*W*H) Package Contents:1 x Drill Chuck1 x Chuck Key Description:Clamping Range: 1.5mm-13mmClassic keyed 3-jaw design can easily clamp twist drill bits and step drill bits with 1.5mm-13mm shankMounting threaded: 1/2-20UNF, can easily transform power impact wrench to a drillConstructed from premium chrome vanadium steel for durability.
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