10X Mini 0.3-3.5mm Small for Mini Electronic Drill Chuck Bit Tool Set Universal New

Material: brass + aluminum alloy Size: Tail diameter: 3.17mm Overall length: 33mm Color: Black+Gold Package Contents: 10x Drill chuck Only the above package content other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.