Tristar industrial tools offers a set of torque multipliers. These are precision gear units designed for multiplication of input torque to achieve a high torque output, recommended to be used where very high torque [over 100 kg-m] is required, to minimise input effort. As such the use of torque multipliers reduces the manpower required as well as operator fatigue. The torque multipliers are available in multiplication factors of 5:1 and 25:1. A set of torque multipliers covers torque requirements from 100 kg-metre to 925 kg-metre. Tritool torque wrenches are recommended to be used at the input end to achieve an exactly calculated output torque. They can be used for either tightening of high tensile bolts or loosening rusty and frozen nut bolts