The Lang Tools 6-in-1 Fan Clutch Wrench, No. 3406, is designed to provide better hand alignment and a clearer line of sight while improving accessibility in tight fan clutch areas. The tool combines the convenience of six most commonly used wrench sizes into one double-end wrench. The sizes include: 22, 32, 36, 40, 48, and 50mm. The square drive cutouts are designed for use with a breaker bar for added torque or length.