West Valley Precision Inc., a custom machine shop in the south bay, has supplied precision parts and assemblies to clients in diverse industries since 1987. Our 21,000+ square foot facility allows us to handle prototype and production work for companies ranging in size from Fortune 500 to small businesses. West Valley Precision has the expertise to machine diverse materials and we routinely work with extremely tight tolerances for parts such as medical instruments, which require a true position of .0005”. Prototype to production, manual to CNC, West Valley Precision is the only name you need to know in Bay Area machining: 5 axis machining San Jose, CNC machine shop California, CNC precision machining Bay Area.