High Accuracy - The industrial-grade bicycle torque wrench has a torque range of 1-25Nm, with a calibration error range of ±3%. It comes with an official calibration certificate. The adjustable torque wrench set is fully calibrated and tested, meeting ISO and ASME standards. High Quality and Durability - The 1/4 torque wrench head is made of wear-resistant and rust-proof chrome-vanadium steel. The multi-sided ratchet teeth prevent slipping. The dual scales in Nm and FT-LB use laser technology, ensuring clear and easy-to-read markings that resist wear. Pull down the lock knob and hold it until the torque setting is completed. Release your hand, and the lock knob will automatically rebound to lock the value. Reliability and Safety - When the set torque value is reached, the wrench emits a click sound to remind you to stop applying force, preventing damage from excessive torque. When not in use, please adjust the wrench to the minimum torque value to prolong its service life. Bidirectional Adjustment - The blade of the torque wrench head can be adjusted at any time for use in both clockwise and counter-clockwise directions, meeting your various operational needs. It is widely applicable for equipment installation, electrical engineering, bicycle/motorcycle maintenance, and product assembly. Rich Accessories - Includes hex bits: H2, H2.5, H3, H4, H5, H6, H8, H10; Torx bits: T10, T25, T30; 1* 10cm extension rod; and 1* coupler. The protective moulded case ensures the safe storage of the adjustable torque wrench and tool bits, meeting all your needs., Weight: 2.20462262 pounds, Manufacturer: BlueMars