ARES 70071 | 3/8-inch Drive Impact Universal Joint | Chrome Moly U Joint Socket Accesses Hard to Reach Fasteners DESIGN: This Impact Universal Joint has a Manganese Phosphate coating to resist corrosion and is laser etched for easy identification. Designed for use with all cordless, electric and pneumatic impact wrenches, the spring-loaded detent ball securely latches and the through-hole in the drive end locks securely onto the drive tang. DURABLE CONSTRUCTION: The unique spherical ball design distributes torque loads evenly over a greater surface area, enabling an improved action range of motion for easier access to hard to reach areas and significantly enhanced strength and life over traditional swivel sockets. Made from high-strength, premium Chrome Moly steel, this universal joint meets and exceeds ANSI/ASME standards. MUST HAVE: Traditional universal joints can bind causing the pin to snap or fall out. Dont get stranded during your break or suspension job with a busted universal socket. This is great for work on your car; no more knuckle cuts from tight spots! RELIABLE | EFFECTIVE | EFFICIENT: Users trust ARES to be quality tools. You are backed by our Performance Assurance Limited Lifetime Warranty. If you have any issues with your ARES Impact Universal Joint, simply contact customer service for troubleshooting help, parts, replacement, or refund. ASPCA BUSINESS AMBASSADOR: We are proud to be part of the ASPCA Business Ambassador Program. If you have a pet, you realize they are more than a pet, they are part of the family. With your support, were proud to help this great organization.