【Premium CR-MO】Manufactured from premium impact grade chrome molybdenum steel construction with corrosion-resistant black phosphate finish for durability.
【Application】Tapered Male Square Drive and Chamfered Female Square Drive, aligns socket to fastener quickly, Low profile design, can easy to access tight spaces, fit any 3/8" drive ratchets / bars etc.
【Laser etche】Large, high-contrast size marking is permanently laser etched and easy to read, even in low light.
【Service Guarantee】All MIXPOWER Tools meet or exceeds ANSI performance standards. It comes with 1 year quality warranty.