Established in 1976, Tri-Star Engineering Inc. is a full-service designer and manufacturer of a variety of precision cutting tools, which include special drills, reamers, counterbores, trepan tools and hollow mills. Based in Elk Grove, Ill., the company specializes in radial and axial cam relief grinding in both internal and external forms. It possesses a 16,000-square-foot facility and serves various industries, such as the automotive, plumbing supply, aircraft and appliance industries. Tri-Star Engineering Inc. is an ISO 9001:2000 certified company.