Feature:1. TORSION VALUE: The minimum torsion of this wrench is 28N.m, the maximum torsion is 210N.m, with fixed ratchet head design, has wide application range.2. 40CR STEEL: The torsion wrench is constructed of hardened 40CR steel, with polished and plated surface, resistant to wear and corrosion.3. RATCHET HEAD: Reinforced ratchet head can be reversed in both directions for use in confined spaces, and stops applying force when you hear a click.4. CLEAR READING: Features engraved graduations, has high contrast, dual range scale for improved clarity, which helps clear and fast reading.5. EASY OPERATION: This torsion wrench has 1/2in drive head, compact and lightweight, easy to operate, widely used in mechanical and auto repair.How to Use:1. Determine the preset torsion value according to the torsion value required by the workpiece.2. When the torsion value is preset, pull down the locking ring on the handle of the wrench, and turn the handle at the same time to adjust the value of the main scale line and the differential scale line of the ruler to the required torsion value. After adjustment, release the locking ring and the handle automatically locks.3. Install the corresponding specification sleeve on the square tenon of the wr