The Mayhew Tools' Titanium-coated, Low Profile, Dual Drive 11-pc Torx Bit Set, No. 16003, offers a wide range of sizes, giving users the ability to fasten or unfasten Torx screws. The set includes a convenient storage rail that keeps all bits organized and easily accessible. The set features a titanium coating that enhances the strength and durability of each piece, along with a low-profile dual-drive design to allow use with a ratchet or 11mm wrench. The popular 1/4" drive has an overall 3/4” length and is backed by a lifetime warranty. The set is assembled in the U.S.A.