The Wera Kraftform Plus 921 is a hand impact driver designed for loosening stubborn or seized screw connections, combining the functionality of a manual impact wrench, compact tool, and screwdriver in a single unit. At the heart of this tool is a switchable impact wrench function that converts hammer blow impulses into rotary movement, delivering a loosening torque of up to 25 Nm. The pound-thru blade ensures complete power transmission with zero energy loss, making it highly effective where conventional screwdrivers fail. The 1/4" bit holder accepts a wide range of specialised bits to suit various screw profiles, while the reversible impact wrench and screwdriver functions give the user full flexibility on the job. This makes the 921 ideal for automotive work, maintenance tasks, and any trade application involving tight or corroded fixings. Features and Benefits:Switchable manual impact wrench function for loosening stubborn screw connectionsDelivers up to 25 Nm loosening torque