Led the way in providing innovative solutions to difficult internal machining problems, starting with the development of deep hole drilled components for the first U.S. Navy nuclear submarines. This technology has since led to the development of machinery, built in-house by Dearborn Inc., and many new manufacturing processes that have been applied to commercial reactor applications, aerospace and other industries. Over the past 50 years, Dearborn, Inc. has evolved from providing precision deep hole drilling services, to manufacturing sophisticated finished-machined parts.