Introduction: Mahr Federal was founded 85 years ago and is located in Providence, Rhode Island. It is renowned worldwide for providing dimensional measurement solutions and meeting the measurement needs of precision manufacturers in various industries such as automotive, defense, aerospace, machining workshops, and machinery. Such as bearings, pumps, engines, computers, canning manufacturing, plastics, and medical equipment. Mahr Federal has professional measurement personnel dedicated to developing and producing innovative and imaginative size measurement instruments to improve measurement efficiency. Providence's technical application engineers have experience in identifying and meeting customer measurement requirements. To provide global customers with the right solutions, such as high-precision molding or surface finish analysis instruments or specially designed measuring tools, suitable for high-speed measurement, classification, and categorization of wrist needles.