Drive: DIN 3126, ISO 1173, form C 6.3. Suitable for all types of screwdriving in trade and industry. Designed for controlled screwdriving at a specified torque, in combination with a Wiha Torque 6 mm interchangeable blade. Ideal for controlled screwdriving with nuts and bits at a specified torque. Extra: Supplied in a practical plastic box, including a factory test report. Accuracy: ±6%, traceable to national standards. Handle: Made of tough cellulose acetate. Numerical torque value display in a window scale. Torque is continuously adjustable with the Torque-Setter setting tool (included). Comfortable cross handle with soft zones for optimum torque transmission. Click signal when the set torque value is reached. Sleeve: Bit quick-change holder for Wiha cross-handle torque tools, enabling particularly fast bit changes. Blade: Octagonal profile with a hole in the blade tip, through-hardened, zinc-plated. Made of high-quality chrome-vanadium-molybdenum steel, through-hardened, and matt chrome-plated. Head: Bright nickel plated, spring-loaded ball. Standards: In accordance with EN ISO 6789, BS EN 26789, ASME B107.14M. Material: High-quality chrome vanadium steel, through hardened.