WOSSEN 1/2" Pneumatic Allen Socket Your companion for heavy-duty tasks! Easily loosen and install even the toughest screws with our 1/2" 78 mm Pneumatic Allen Socket series. Made from CR-MO (Chrome-Molybdenum) steel, it offers extra resistance to impacts. ✅ Suitable for use with pneumatic hand tools. ✅ Long-lasting and corrosion-resistant black phosphate coating. ✅ Precise measurements ensure a perfect fit.