... on the surface Product No./NameJJ-00106 / CNC machining for tools spare part Machining Capability1) Material: Aluminum, Aluminum alloy, stainless steel ... , powder coating, anodize and polishing3) Provide machining service: CNC machining, turning, milling, tapping, drilling, polishing, punching, etc... 4) Tolerance: +/-0.002 ... +/- 0.0005 inch, also accord with GB6414 CNC machining for tools spare part