1/2" Drive Thin-Wall Universal Joint withBall Retainer Grey Pneumatic sockets are designed for professional tool users.. Made of high quality alloy steel.. Engineered specifically for use with impact tools.. Benefits of the GP Impact Socket “High Torque” drive: Increased strength, easier access to tight areas, and reduced wear.. Universal Joint. 1/2” Drive. Thin–Wall Universal Joint w/Ball Retainer . Drive End 0.93”. Socket End 1.00”. Length 2.36”. 2229TUJ is a thin–wall design that provides extra clearance in tight spaces and due to this design is not covered by the Gp Warranty. 2229TUJ