| Features: brand new and high quality Made of high-quality materials, Strong resistance High precision thread and taper hole Compatible with drills and electric drills of different power 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 Drill clamp JT0 connecting rod is used to connect the motor drill with 3.17mm motor shaft 2.3mm and 3.17mm shaft coupling motor connector BRASS Close fit 2.3mm 3.17mm motor shaft copper rod Suitable for 0.3-4mm JT0 round head clamp Matching motor shaft diameter: 2.3mm or 3.17mm Diameter of the inner hole of the sleeve: 4mm, 5mm, 6mm, 8mm Matching motor shaft diameter: 4mm, 5mm, 6mm, 8mm Mini Drill | |