Universal T15-T55 Torx Multitool Set. Torx head fasteners have gained massive popularity with many vehicle manufacturers. Wherever you are and wherever you drive to, make sure that you are prepared with this multi-tool set. It incorporates a 3/8 drive ratchet and 9 chrome vanadium bits, size T15 through T55, and the T50 bit includes the hole that allows it to be used on tamper-proof fasteners. All bits are mounted on a steel rail and everything fits well in the included ballistic nylon carrying case.