SwissGrip Evo screwdrivers (main dimensions marked with an asterisk*) for slotted screws parallel tip, optimum transmission of force, no cam-out optimized handle shape for maximum transmission of force and exceptionally high torques the SwissGrip Evo’s superior ergonomics ensure effortless, fatigue-free work non-slip and comfortable grip – for safe, precise use in all conditions inner core made from 100% recycled material, outer core with recycled content, for maximum durability modern 3-component material: highly resistant to chemicals and mechanical stress, robust, hard-wearing Color Code, laser engraving on the end of the handle – quick identification of screw profile and size special alloy based on spring steel, exceptional elasticity coupled with with high hardness laser-marked serial number, lifetime guarantee