The torque wrench is manufactured from chromium-vanadium steel (Cr-V) for exceptional strength and corrosion resistance. Torque range: 1-25Nm/8.9-221.3Lbf.in, ±3% error accuracy, each wrench includes a unique calibration certificate with a serial number for guaranteed precision. Non-slip handle with durable, ergonomic design ensures a secure grip during torque adjustments. A quick-release button ensures safe installation and replacement. Dual-scale design allows users to read torque values in two different units quickly and easily, with no need for conversion! 72-tooth dual-directional ratchet head, easily operates in clockwise and counterclockwise directions. Emits an audible "click" and tactile feedback when the preset torque is reached, preventing over-tightening and ensuring accuracy. (Please note that the click noise may be subtle at low Nm settings.). It comes with 1 year quality warranty.