This adjustable T-handle torque driver features torque accuracy of +/- 6 percent and is adjustable 5 to 14 Newton Meters. Meets ASME B107 .14m, EN ISO 6789, BS EN 26789. Features soft ergo grip. A click is heard when correct torque is achieved. Each tool has a unique serial number and calibration certificate. Accuracy is guaranteed to 5000 cycles or 1 year. Uses replaceable blades. Reverse torque is 50 percent greater