CNC Machining Tolerances
By its nature, CNC machining produces very precise parts with tight tolerances. Since the machines are computer-controlled, the method provides for high repeatability and is a good method to produce complex parts.
We will typically hold all tolerances to within +/- 0.2mm – 0.3mm. If there are critical areas on your part where tight tolerances are extremely important, you can specify that we hold tolerances tighter than 0.01″ (0.254mm). This is an option in the Secondary Processes dropdown menu in our CNC machining quotation system.