Astro Products AP 1/2DR Preset Torque Wrench Set Gray TQS046 (Limited Edition) Product Description This preset torque wrench is essential for tightening wheel nuts on passenger cars. It comes with three sizes of sockets with sleeves that are less likely to damage the wheels, and an extension bar. You can set the torque value by turning the grip, and lock the set value at the grip end. When the set value is reached, it will notify you with a light "click" and sound. Product Specifications Set Contents: Torque wrench, wheel sockets 17, 19, 21mm, extension bar 150mm, storage case Torque Wrench Total Length: 420mm Weight: 1kg Setting Range: 30-180Nm Minimum Graduation: 1Nm Accuracy: ±4% Drive: 1/2DR (12.7mm) Gear Count: 24T Sockets Total Length: 78mm Material: Chrome Vanadium Extension Bar Total Length: 150mm Material: Chrome Vanadium Notes * Always check the proper torque value for bolts and nuts in the service manual, etc. * Always use within the setting range. * When the torque is low, the shock and sound are extremely small, and there is a risk of over-torque without noticing the shock, so be very careful. * Even if you lock the grip with the lock dial, the grip may move, so use with caution. * Do not use as a ratchet handle, spinner handle, or hammer. * Do not insert pipes, etc., and extend for use. * Avoid using extension bars and conversion adapters as much as possible, as they can cause errors. * Reverse rotation (counterclockwise) cannot be used. * After use, always set the value to the minimum and store it in the dedicated case. If the set value exceeds or falls below the minimum value, it may cause the main unit to malfunction or cause errors. * This product cannot be calibrated. * Sockets and extension bars are not compatible with impact wrenches.