The Wera Kraftform Kompakt 19 Piece Turbo Screwdriver And Bit Set is the innovative combination of a geared high-speed bit holding screwdriver and quick change bits for 18 different screwdriving applications.The Kraftform Turbo s geared design quadruples the speed of manual screwdriving.Simple push of a button activation and deactivation of the turbo function.Provides up to 14N/m or torque.Fits 1/4" external hexagon bits.The Kraftform Turbo screwdriver handle is constructed with the same unique 2-part composite handle design as other Wera screwdrivers which comprises a hard compound for greater speed of movement and power transfer with a softer compound for non-slip and comfort grip and the hexagonal anti-roll profile which prevents the tool from rolling away when placed on smooth surfaces. But inside the Turbo handle is an impressive array of robust steel gears which once activated by the simple push button mechanism on the top of the handle unleashes a rapid drive system that quadrup