Compact and robust, interchangeable blade screwdriver set for loosening stubborn screw connections. Features specially hardened, extra tough bits with 1/4" external hexagon drive and manually activatable impact wrench function, which can be switched to screwdriver function as required. Hammer blow impulse is converted into a rotary movement with a loosening torque of up to 25Nm, whilst the pound-thru blade ensures complete power transmission with zero loss. Robust bit holder allows mounting of different specialised bits for various screw profiles. Chrome Molybdenum Steel Blades Ergonomic Handle Chrome Molybdenum Steel Blades Ergonomic Handle