High quality impact driver that can loosen rigid connections without the use of power tools simply by the force of the impact. The Wera impact drivers have a particularly high efficiency thanks to their robust, double-curved design. Impact forces are converted into rotary motion. The use of compressed air equipment becomes unnecessary. For M 4 to M 8 screws. Drive: 5/16″ hexagon socket. Features and Benefits 2090 impact driver, 90 Nm To loosen and tighten screws without the use of power tools Impact forces are converted into rotary motion The double-curved design is particularly efficient 5/16″ hexagon socket take-up Contents 2090 Impact driver 90 Nm, 5/16″ x 142 mm