Features [Adjustable Torsion] This adjustable wrench provides a torsion range of 20 to 210Nm, equipped with a 0 to 37mm adjustable opening wrench head, versatile for a wide range of applications. [High Accuracy] Clockwise and counterclockwise accuracy of this torsion wrench is ±3%, ensuring precise and reliable torsion application. [Clear Scale] The scale on this large opening wrench is clear and easy to read, with excellent resistance to wearing off, ensuring accurate torsion setting. [Easy Setup] Simply pull down the locking knob and rotate to increase or decrease the torsion value in a clockwise or counterclockwise direction. Release the knob, the torsion setting will be locked in place. [Wide Application] This torsion wrench is ideal for tightening and loosening nuts and bolts in tight spaces, suitable for motorcycles, automobiles, refrigeration systems, HVAC, mini split air conditioners, and various industrial maintenance tasks. Specification: Item Type: Adjustable Wrench Material: CR V, Aluminum Alloy Square Hole Size: Approx. 14x18mm/0.55x0.71in Torsion Range: 20-210Nm Resolution: 1.0Nm Accuracy: ±3% Handle Length: Approx. 455mm/17.91in Package List:1 x Handle 1 x Adjustable Torsion Wrench Head 1 x Manual 1 x Storage Tool Box Package List 1 x Handle 1 x Adjustable Torsion Wrench Head 1 x Manual 1 x Storage Tool Box