About Us

Precision CNC Machining

CAL Precision was started in 1998 by Charles and Donna Loper and was acquired by Allied Mechanical in November 2020. we currently have 15 employees. We are a privately owned company specializing in Aerospace Manufacturing. We offer quality work, professionalism in all aspects of the company, excellent customer service, and straightforward communication. In January 2018 we were certified to AS9100 D with ISO, we are very proud of our team here and all the hard work and dedication they have to us and to maintaining an excellent quality system. We look forward to continuing our relationships with our customers and vendors throughout this year.


With 45 years experience in programming, machining, and quality inspection in the Aerospace, Defense, and Commercial machining industries gives us the edge in manufacturing complex and close tolerance parts that most turn away

Our 13,000+ sf manufacturing space means we’re able to service your long or short run production from start to finish, with plenty of room for additional equipment when needed. We are centrally located to Los Angeles and Orange counties in the Inland Empire in the city of Corona.