The wera kraftform kompakt 900 19 piece hand impact driver set imperial is a comprehensive manual impact screwdriver kit designed for loosening stubborn, corroded, or over-tightened screw connections across a wide range of fastener profiles. At the heart of the set is the 921 kraftform plus impact screwdriver, which combines the function of a manual impact wrench, a compact screwdriver, and a pound-thru blade tool in a single unit. When struck with a hammer, the mechanism converts the blow directly into rotary movement, delivering a loosening torque of up to 25 nm with zero energy loss. The impact wrench and screwdriver functions are switchable, giving the user full control depending on the task at hand. The set is well suited to automotive work, general maintenance, and site use where seized fasteners are a common challenge. The 18 included impact-rated bits cover phillips, torx , hex-plus imperial, square head, and slotted profiles, with all bits manufactured to a specialist hardened specification for use specifically with impact screwdrivers. A hook and loop fastener strip is included for organised storage. Features and benefits: manual impact wrench function delivers up to 25 nm loosening torque for seized fixings pound-thru blade ensures complete power transmission with zero energy loss switchable between impact wrench and screwdriver function as required robust bit holder accepts 1 4 hex shank impact-rated bits 18 specially hardened bits covering five fastener profi...