Cam-Over" torque wrenches utilize a ball and lobe design that allows the tool to slip free when torque is reached. Even if the application of force is repeated, the preset torque value won't be exceeded, eliminating the possibility of over-torque. These tools are perfect for maintenance and production applications where over-torque conditions are not tolerated. The use of cam-over wrenches takes the operator influence out of the torque equation and offers more accurate and repeatable results than a standard 'click' type wrench.