Acast provides best precision casting services in Australia. Precision casting is another form of investment casting using a different wax and coating substrate.Precision Casting uses the same process as investment casting (lost wax) but uses a different wax and shell coating substrate. The standard surface finish is 7- 12.5 Ra this can be altered to match the client requirement. Casting weight limits for precision casting are .1kg to 100kg. Standard dimensional tolerances are CT7-CT9 but can be made to suit the clients' needs.