1、ACCURATE WITH RATCHET: Preset torsion wrench with ratchet function, accuracy up to ±3%, the overall use of chromium vanadium steel with excellent quality, fine surface 2、EASY TO OPERATE: With a preset torsion value and sound device, when the fastening torsion reaches the preset value, can automatically send a signal click sound, accompanied by obvious feel vibration prompts to complete the work, after removing the force, the wrench related parts can automatically reset 3、WEAR RESISTING ELECTROPLATING CHROMIUM: Wrench surface with electroplating chromium, after electroplating bring beautiful appearance, wear resisting 4、STURDY AND DURABLE: Torsion wrench handle has differential calibration line, clear and accurate reading. Alloy steel material forging, durable with long life 5、APPLICABLE SCENARIO: Torsion wrench is a mechanical construction tool for transferring threaded parts and bolts, easy to use, which is widely used in the erection of bolt welded structural bridge, plant, tower and installation of chemical, metallurgy, power generation and marine equipment. Large machinery, lifting equipment and vehicle assembly operations where threaded fasteners and accurate instruments have stringent torsion and axial tension requirements