SigmaSIX LLC is an engineering and manufacturing company located in the Detroit, Michigan automotive technical corridor. With over 80 collective years in fastening tool controllers and power tools, the team at SigmaSIX is constantly testing the needs of the fastening tool process engineering market. Our extensive background in the power tool industry allows us the flexibility of developing OEM product to your exacting specifications as well as providing our own line of process controllers, transducerized air tools and torque measurement equipment.