Durston's UJET100 Universal Joint "E" Torx work well for hard-to-reach torx bolts on steering columns, air bags, transmissions and many other applications. WIth nose diameters reduced to fit in tight areas, the 9-piece set includes inverted torx drivers E4 through E16. Sizes E4 through E8 have a 1/4" square drive, while sizes E10 through E16 have a 3/8" square drive. All tools feature heat-treated, Chrome Moly steel.