Rockwell Hardness Tester

The Rockwell Hardness Tester is used by most manufacturers as a quality control device. This tester indicates true quality by using a series of weight and levers built in that prevents human error in applying forces. Tests such s those using torque devices operated by a person allow for the operator’s lack of accuracy and, therefore, do not necessarily indicate true values of qualities. Any test for quality based on this should be considered on the basis of its inherent tendency for human error.