Tolerances according to ISO2768-1 (F for metals, M for plastic)
We can reach +/-0.01mm for metal parts if you require，which the costs will go up.
CNC Metal Cutting Machine Manufacture of Parts Using Pre-Programmed Software
Computer Numerical Control (CNC) metal-cutting machines are increasing in acceptance across the manufacturing industry. In the past, many producers have used machines managed by skilled engineers. Computers make it possible for people with less skill to operate and control CNC metal cutting. Recent advances in digital technology, predominantly embedded systems, have empowered companies to produce low-cost machines for real-time requests.
In today's CNC metal cutting machine protocols, the manufacture of parts has been typically automated through pre-programmed computer software. Specifications of the element are set up with computer-aided design (CAD) software and then interpreted into the actual complete product with computer-aided manufacturing (CAM) software. CNC metal cutting is a manufacturing process in which pre-programmed software regulates the movement of workshop equipment and machines.
The method may regulate a range of intricate machines, from grinders and lathes to mills and routers. With CNC machining, three-dimensional cutting jobs can be accomplished with a single set of instructions. CNC metal cutting machines can work 24 hours a day and all through the year. The only time the systems must be turned off is when they must be mended. A computer-controlled system can be automatic to create products that look the same in large quantities. This has made it easier to accomplish mass production of products.