Digital Torque Wrench Tester is an intelligent multi-functional measuring instrument which is designed for testing torque wrench. It main used in testing and calibrating various kinds of Concentration type torque wrench, digital type torque wrench, preset type torque wrench, torsion screwdriver, screwdriver and all kinds of products involving tighten force instrument. Widely used in electrical manufacturing, mechanical manufacturing, automotive light industry and in scientific research and testing industry.