Pro Tool 7pc Mini TORX Star Tamper Resistant Bits T4 - T10 for Electronics - Premium Quality Taiwan - AZ7MTX High quality TORX/star bits for tamper proof/resistant fasteners in hard-to-find mini sizes Hardened & tempered S2 tool grade steel resists twisting and cam-out. Made in Taiwan Smaller tip sizes fit many electronic devices - cell phones, MP3, games, computers, automotive Hex shank fits all 1/4-inch driver handles, extensions & adapters Sizes T4, T5, T6, T7, T8, T9, T10 in PVC organizer sleeve