·带锻造UD外形套筒,手工操作 ·附件采用钒钢CrV3 ·带转向拨杆棘轮 ·包括:1"双向棘轮扳手 ·套筒:21,36,41,46,50,55,60,65,70, ·75,80mm ·2延长杆 ·1T型滑动头手柄