Our T6 Cell Phone Screwdriver reflects the most common size driver used when changing batteries and swapping faceplates, or repairing cell phones. The handles free spinning cap allows for precise, fingertip control during installation and removal of the screw. For changing batteries, faceplates and repairing cell phones. T6 Torx head. Rolling cap for added control. Ergonomically designed handle. 1-1/2 in. chrome vanadium steel blade.