Wera 400 5mm Hex Plus Torque Indicator Screwdriver

The Wera 400 5mm Hex Plus Torque Indicator Screwdriver is a fixed-torque screwdriver designed for precise, controlled tightening of hexagon socket fasteners. Built around a robust slip clutch mechanism, this torque screwdriver delivers a clearly audible and tactile signal the moment the pre-set torque value is reached. Once triggered, the clutch prevents any further torque being applied — making over-tightening impossible and protecting sensitive fixings from damage. A key advantage of this tool is that the loosening torque is significantly higher than the set tightening to