Not only can techs work in more confined spaces with Snap-on's Locking U-Joints, they can work faster due to the one-handed lock mechanism that enables quick tool attachment and removal. The pivots of the u-joints are laser welded to provide strength without adding bulk and the knurled sleeve allows for better tool control. Available in either a 3/8" drive, No. FUL8A, or 1/4" drive, No. TMUL8.