Surface finish is often discussed at the end, but for precise parts it can affect production from the first drawing. If Groundmetal should arrange a surface finish, include it in the enquiry with the drawing, material, and quantity.
Mark functional faces, fits, threads, precise holes, and areas that must remain protected or dimensionally accurate. A finish layer can affect assembly, bearing seats, gear function, or later use of the part.
What should be agreed before production?
| Topic | Why it matters |
|---|---|
| Finish type | Affects lead time, cost, and handling. |
| Functional faces | Some faces must remain accurate or protected. |
| Threads and holes | They may need protection or cleaning. |
| Gearing and fits | Clarify whether they are finished or protected. |
| Packaging | The finished surface must be protected during handling and delivery. |
Checklist
- State the required finish type.
- Mark functional faces, threads, fits, and precise holes.
- State whether Groundmetal should arrange the finish.
- Add packaging and delivery requirements.
- When unsure, describe where the part will operate.