The Wera 400 4mm Hex Plus Torque Indicator Screwdriver is a fixed-torque screwdriver designed for precise, controlled fastening using hexagon sockets. Built around a robust slip clutch mechanism, this torque indicator delivers a clearly audible and tactile signal the moment the set torque value is reached. Once triggered, the clutch prevents any additional torque from being applied, effectively eliminating the risk of over-tightening. A key practical advantage is the significantly higher loosening torque compared to the set tightening torque, meaning no secondary tools are required to undo fastenings. The tamper-proof design ensures the pre-set torque value cannot be accidentally altered during use — essential in professional environments where consistent torque application is critical. The T-handle is ergonomically shaped to fill the hand naturally, with softly rounded recessed grips that seat the fingers comfortably for extended periods. This design maximises power transmission while reducing hand fatigue, making it well suited to repetitive fastening tasks in engineering, assembly, and maintenance applications. Features and Benefits: • T-handle design for effective transfer of controlled tightening torque and high loosening torque • Slip clutch provides audible and tactile signal at the set torque value — prevents over-tightening • Tamper-proof construction prevents accidental adjustment of the pre-set torque • Higher loosening torque than tightening torque — no additional tools needed to release fastenings • Ergonomic recessed grip handle for comfortable, fatigue-reducing use • Corrosion-resistant blade for durability in demanding conditions Contents: 400 Hex Torque-indicator, 4 mm x 4.0 Nm Specifications: Hex Size: 4 mm Torque Setting: 4.0 Nm

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