【B16规格说明】:钢套带丝【B16+10MM】 材质:全钢,带两颗有机螺丝固定,钻夹头接口为B16,电机轴直径为10mm 配套使用[B16 Specification]:Steel bushing with wire [B16+10MM] Material: All steel, with two organic screws, drill chuck interface is B16, motor shaft diameter is 10mm