1x Micro Motor Drill Chuck Clamping Range 0.3-4mm Taper Mounted Drill Chuck

Mini Drill Chuck Key 0.3-4mm JTO Taper Mounting Lathe Chuck Mini Drilling Machine. Maximum clamping force: 4.2mm. High for precision thread and taper hole. 2.3 mm and 3.17 mm brass mini motor shaft clamp drill chuck, suitable for drill bits from 0.3 mm to 4 mm.

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