This document discusses the Universal Measuring Machine (UMM) and its advantages over a Coordinate Measuring Machine (CMM). The UMM can inspect geometric features of parts more accurately than a CMM and can resolve the exact nature of errors in complex parts. Key components of the UMM include its ability to measure length, geometry, divide circles, and roundness. Attaining mechanical accuracy with the UMM requires mastery of these four areas. The document also provides details on inspecting parts, achieving mechanical accuracy, and the standards for length, dividing circles, and measuring roundness.