Battery-free, mechanical screwdriver incorporates universal gear in the handle for fast, precise and powerful screwdriving. Features button-operated turbo function, allowing gear to be fixed for control when making fine adjustments and final tightening or loosening of a high torque screw. Features quick-release, Rapidaptor bit holder, allowing fast and easy bit change with single-handed operation for use with all conventional 1/4" hexagon bits for a wide variety of screw profiles. Maintenance-free, robust steel design ensures long product life. Chrome Molybdenum Steel Blades Ergonomic Handle Max Torque 14Nm Chrome Molybdenum Steel Blades Ergonomic Handle Max Torque 14Nm