Specification: 100% New, Never Used Material: 45# steel Quantity: 12pcs Weight: 340g Features: 1. The material of the transfer rod is 45 steel, which is processed by a professional numerical control lathe. The transfer rod is very smooth and tidy, with high concentricity and precision. 2. The new upgraded version of the three-edged handle electric drill variable angle grinding connecting rod, the electric drill clamp is tighter, does not shake, does not slip! 3. The electric drill that can clamp 10 mm drill bit can be used (when working, make sure that the pressing plate is pressed closely beside you, do not stand by people). 4. Handle diameter 9 mm. 5. 12PCS Electric Drill Fittings for Screw Shaft Viscose Disc Converter Rod Hand Drill Angle Mill Cutting and Grinding Set Package included: 1 x Electric Drill Fittings set