A multiplier is a much safer and compact method than using an extended "cheater bar". A multiplier can apply higher torque than what is ordinarily possible and allows an operator to use their regular torque tool for a high torque application. A multiplier usually has ratios of 5:1, 25:1, and 125:1. There are models for hand torque tools which are ideal for low volume or intermittent use, and models for powered torque tools. A simple formula is used to achieve the proper torque rating desired.