旋具材质：高级合金钢(S2)，整体淬火，不易断裂打滑套筒头材质：高级铬钒钢，镀铬，扭矩强旋具表面处理：喷砂镀铬编号规格(size)总长度(mm)重量(g)包装方式(盒/箱)203708T8371220/600203709T9371220/600203710T10371320/600203715T15371420/600203720T20371420/600203725T25371420/600203727T27371420/600203730T30371520/600203740T40371620/600