Description: Practical, rugged and durable Suitable for combined use with a hand drill or electric drill Clamping Range: 0.1-3.5mm Shaft (Tail) Diameter: Approx. 3.17mm Overall Length: Approx. 33mm Specification: Material: Brass?aluminum alloy Color: Gold, black You will receive all the parts shown in the pictures. Package Includes: 1 Piece of Universal 0.1-3.5mm Drill Bit Chuck Kit