Correct torque settings are essential for the safety and integrity of many fasteners & components on a diverse range of machines. You can ensure torque-sensitive fasteners are set to precise tolerance with this wrench. Using the CHT141 means that nuts are tightened in accordance with manufacturer`s recommendations so avoiding undue mechanical stress and distortion. This is especially important when re-tightening crucial fasteners (cylinder head bolts or alloy wheel nuts for example) and other multi point fixings. operating range 28 to 210 Nm (20 to 154 ft/lb). Complete with 5" extension bar and 1/2" - 3/8" adaptor. Supplied in a tough moulded case.