High Accuracy 3%Each torque wrench is fully calibrated in accordance with the requirements of ISO 6789-1:2017, DIN EN 6789-1:2017-07 and ASME B107.14M and test methods for compliance testing , with an accuracy of 3%. Individual calibration certificate included with each set. Its industrial quality characterizes stable and reliable precision and more durable. It is reliable and accurate for repairing and maintaining bicycles in daily use. Torque value range 5-25NmHigh quality professional torque wrench with clear and easy to understand scales, the scale adopts laser technology, the range scale is clear and easy to read, you can easily adjust the torque between 5-25Nm. The torque wrench head paddle can adjust the direction of use at any time, so that the wrench can be operated both clockwise and counterclockwise. Easy to use with the head to Quick ReleasePress and hold the lock button until the torque adjustment is completed. Release your hand and the lock button will automatically rebound to lock the value. The torque wrench head is equipped with a quick release button, which can easily install and remove the plug, firmly hold the plug to prevent it from falling. More convenient to use. With preset torque value and sound deviceWhen the tightening torque of the fastener reaches the preset value, it can automatically make a "click" sound to remind you to stop applying strength. And at the same time, it is accompanied by an obvious hand vibration to drive the completion of the work. When the force is released, the parts associated with the torque wrench are automatically reset. With 72T Ratchet Head Torque Wrench KitWe offer a convenient drop-proof carrying case, including: 10 extension cord cm and a 3/8 adapter. The torque wrench has a 72-tooth reversible ratchet head, both directions can be tightened and loosened. Made of wear-resistant and rust-resistant chrome vanadium steel, non-slip and comfortable stainless steel handle. TipsDo not use a torque wrench at more than 120% of the maximum range.