John J. Callahan III

For over 55 years, Day Tool & Mfg. has been manufacturing and offering CAD design assistance of custom machines, precision tooling, stamping dies, special machines and precision machined parts for customers in the aerospace, biotech, biomedical, medical, pharmaceutical, and packaging industries. We are dedicated to providing creative, innovative solutions to manufacturing and design problems. Our shop can produce any quantity from 1 to 1,000 pieces. At Day Tool & Mfg., we take customer service seriously. We invite visitors to tour our modern, 24,000 square foot, climate controlled shop in Central New Jersey. We perform work of the highest quality and are AS 9100, Rev D and ISO 9001:2015 certified.