Located in Irwindale, CA, Crown Precision is a state-of-the-art CNC machine shop specializing in high-precision CNC turning, milling, grinding, and component part assemblies. For over 40 years Crown Precision has been a leading supplier of machining and assembly services to the aerospace industry.   We have built our reputation by providing outstanding customer service through quick responses, on-time delivery, and proven lean manufacturing principles. Crown Precision is your one stop shop for all your complex machined components using a wide range of materials including stainless steels , aluminum , titanium, copper, bronze and all aircraft alloys.