The Vulcan universal impact joint features an innovative ball design that distributes torque loads evenly over a greater surface area, enabling an improved action range of motion for easier access to hard to reach areas with significantly enhanced strength and life over traditional sockets. Made from high-strength, premium chrome moly steel with a manganese phosphate coating to resist corrosion, this universal joint is designed for use with all cordless, electric, and pneumatic impact wrenches and is laser-etched for easy identification. Spring-loaded detent balls securely latch and the through-hole in the drive end locks onto the drive tang, so you can work securely and safely, even in tight spots.