Tumbling as a defined finishing step
Tumbling services may be requested to address edges or surface condition on machined parts. The result depends on the part material, geometry and specified process scope, so do not use the service name as a substitute for an acceptance requirement. Identify whether the goal is edge treatment, a particular appearance or another drawing-defined condition.
Protect features that matter
Provide the current drawing and material grade. Mark threads, small holes, sharp edges, datums, mating faces and dimensions that should not be altered. Identify surfaces to treat and any areas to protect. If a part includes delicate or close-tolerance features, call them out for feasibility review.
Set inspection and downstream steps
State the visual or dimensional acceptance method, quantity, packaging and any follow-on coating or finishing. Confirm whether measurements are required before or after tumbling. Include the drawing revision and approved sample where appearance is controlled by a reference.
For overall surface-treatment scope, see CNC surface finishing services. For a different abrasive finish, see bead blasting services.
Tumbling RFQ checklist
- Material, geometry and drawing revision
- Purpose of the tumbling operation
- Surfaces to treat and areas to protect
- Critical dimensions and acceptance method
- Required follow-on treatment or packaging
Review part geometry and acceptance together before approving the finishing route.
