Specifications: Name:Torque Wrench Tool; Material: Nickel-chromium alloy steel; Wrench length: 215mm; Torque: 2-14Nm; Square Head Size: 1/4 "; 15-piece set (2-14Nm). Detailed configuration is as follows: 2-14Nm Torque wrench (1pc); Hexagon socket head: 2mm,2.5mm,3mm,4mm,5mm,6mm,8mm(7pcs); Hexagon flower type head: T10,T25,T30(3pcs); Cross PH1,PH2,PH3 (3pcs); One-word head: 4mm. Features: High quality industrial torque wrench with accurate Scales. Force Torque Wrench. Easy to use, accurate; reliable. For the installation of a bike torque wrench, length of the best control in the 200MM. How to use: 1. Pre-set torque: release the handle under the black lock nut, one hand grasp the wrench body, one hand turn the handle to the required torque, tighten the handle under the black lock nut, lock the torque value. 2. Install the appropriate sleeve, when use, should be slow and steady application of tightening force, hear the "click" sound, indicating that the torque has been set to a pre-set value. 3. Small torque wrench, hear a small voice, a slip feel, it has been set to the torque value. 4. For the first time or long-term unused, the use of the need to operate 5-6 times to make it smooth, when not use adjust the smallest torque. Package included: 15pcs Bicycle Bike Torque Wrench Allen Key Tool.