wall impact universal joints with 3/8" and 1/2" drives

Grey Pneumatic introduces two thin-wall impact universal joints with 3/8" (1129TUJ) and 1/2" (2229TUJ ) drives. The company feels a thinner wall can help improve access to tight underhood and undercarriage areas. Grey also states that the new impact joints' outside diameter has been reduced by 25 percent, but without sacrificing tool strength.