IMPACT UNIVERSAL JOINT | 12.5 MM (1/2") (KR121900)

Made from CR-MO designed to take the massive force that an impact wrench or driver can dish out. Throw in some swivel action from the ball joint, and you have the easy answer to a hard-to-reach rusted bolt, like, say, an exhaust header bolt that's seen more than its share of under-car action. 360 rotation to do work at any angle.