12合1多用途起子組• 適用於精密設備、各式機械,可輕鬆拆卸或鎖緊小螺絲• 鎳鉻鉬鋼螺絲起子,高硬度、高強度、高耐磨• 三向棘輪可後退/鎖定/前進,方便作業• Suitable for precision equipment, all kinds of machinery, can easily remove or lock small screws• Nickel chromium molybdenum steel screwdriver, high hardness, high strength, high wear resistance• Three-way ratchet back/l..