【Premium CR-MO】Made from premium impact grade chrome molybdenum steel with black phosphate finish for enhanced durability.
【Reduce Fatigue & Discomfort】The spring-loaded detent ball system locks socket into place for security and prevents dropping.
【High-torque】Radius corner design reduces wear and increases torque on fasteners by placing force on fastener walls rather than fastener corners. Engineered for use with impact drivers.
【Laser Marking 】High-contrast size marking is permanently laser etched and easy to read, even in low light.
【Service Guarantee】All MIXPOWER Tools meet or exceed ANSI performance standards. It comes with 1 year quality guarantee.