Griffin Tool Inc, 2951 Johnson Rd, Stevensville, MI 49127, US

Established in 1979, STM Manufacturing is a designer and builder of specialty tools and machines. The company s die department offers progressive and transfer system dies. It maintains a special machine department that builds assembly fixtures, robotic welders, hydraulic pierce presses and function testing equipment. STM Manufacturing also has a design and engineering department that designs dies and special machines in solids using solid-edge software. The company maintains a facility of more than 40,000 square feet and features a range of equipment that includes plotters, printers, copiers and boring mill. It includes inspection equipment, such as gage block sets, multiple granite plates and hardness testers. STM Manufacturing is located in Holland, Mich.