The GM Multifunction Switch Tool, No. GMSTB25, from Snap-on, helps techs avoid removing parts of the steering column from GM vehicles when removing the multifunction (turn signal / dimmer / windshield wiper) switch. This specialty tool works on more than 50 GM vehicles; it consists of a low-profile, 1/4" bit wrench with a T25 Ball Torx bit. The tool is heat-treated for strength and durability, chromeplated for optimal wear resistance and features magnetic bit retention.