RFQ GUIDE — CNC MACHINING
A machining RFQ should define the part, material, quantities, critical requirements, finishing, inspection, and delivery. Collecting this information in one revision-controlled package reduces questions between engineering, procurement, and quality before quotation.
to organize the technical package
geometry, tolerances, and supporting requirements
drawing formats accepted by the form
3D model formats accepted by the form
TECHNICAL CHECKLIST —
Use the eight blocks below to consolidate requirements before sending the request. If information is still undefined, mark it as pending instead of leaving conflicting versions in the package.
Send the available 2D drawing, 3D model, sample, photo, or functional description. Identify the part number, current revision, units, and which file governs if information conflicts.
Part number · revision · units · governing file
State the material, alloy or grade, applicable standard, temper, hardness, or supply condition. Indicate whether an equivalent alternative may be reviewed or the specification is mandatory.
Material · standard · condition · equivalence rules
Separate prototype or validation quantity, initial batch, and recurring demand. When possible, include monthly or annual usage so the process can be reviewed in the right production context.
Prototype · initial batch · recurring demand
Highlight functional dimensions, fits, threads, datums, geometric tolerances, surface finish, and features requiring specific control. Distinguish critical requirements from reference dimensions.
Tolerances · GD&T · threads · fits · surface finish
Specify heat treatment, coating, plating, anodizing, surface protection, color, marking, and areas that must remain finish-free. Include the applicable standard or class when available.
Treatment · coating · marking · protected areas
State the features to inspect, sampling plan, and required documents. Dimensional reports, traceability, PPAP, FMEA, SPC, MSA, or a control plan should be requested when applicable to the supply.
Inspection · reports · traceability · customer documents
Explain the part function, assembly, operating environment, interfaces, and failure to avoid. This context helps identify manufacturability questions without replacing the customer's product validation.
Function · assembly · environment · interfaces · risk
State the requested date, delivery location, partial-delivery needs, packaging, or special identification. Treat timing as a request until the technical and commercial review is complete.
Requested date · destination · schedule · packaging
RFQ PACKAGE —
The minimum column can start the conversation. The complete column reduces assumptions and helps buyers compare quotations using the same technical scope.
| Topic | To begin | For a more objective review |
|---|---|---|
| Geometry | Drawing, model, sample, or part reference. | Consistent 2D and 3D files, revision, units, and a governing-document rule. |
| Material | Intended material or family. | Alloy/grade, standard, condition, hardness, certificate, and equivalence requirements. |
| Volume | First-order quantity. | Prototype, initial batch, recurring usage, and annual forecast. |
| Quality | Critical tolerances and features. | Datums, GD&T, finish, inspection plan, sampling, and required documents. |
| Finishing | Required treatment or finish. | Standard, class, color, defined thickness, marking, and protected areas. |
| Delivery | Requested date and destination. | Schedule, partial deliveries, packaging, identification, and logistics restrictions. |
BEFORE SENDING —
A short review before submission helps prevent procurement, engineering, and quality from working with different assumptions.
Remove obsolete files and clearly identify the part number, revision, and units.
Highlight what affects function, assembly, inspection, safety, or part acceptance.
State what is mandatory and where engineering may review process or material alternatives.
Include initial quantity, recurring demand, requested date, destination, and packaging condition.
Attach the files and identify in the RFQ text any open point that requires joint review.
RFQ QUESTIONS —
Yes. A conversation can begin with a model, sample, photo, reference part, functional requirement, or application description. Quotation and manufacturing depend on sufficient technical definition and may require an approved drawing or specification before proceeding.
Not always. A 3D model describes geometry, while a 2D drawing often records tolerances, datums, surface finish, threads, finishing, and inspection requirements. When both are provided, state which document governs if they conflict.
Quantity and recurrence influence process definition, workholding, programming, inspection, and production strategy. Separate prototype, initial batch, and recurring forecast so quotations are not compared using different assumptions.
Kondak's form accepts PDF, DWG, STEP, STP, IGES, IGS, and images. Identify the current revision and avoid sending conflicting versions without an explanatory note.
No. The checklist organizes the information needed for review. Feasibility, process, documentation, pricing, and lead time depend on the technical and commercial evaluation of the submitted package.
NEXT STEP —
QUOTE —
Share the drawing, material, quantity, and lead-time requirements so the team can review the part.
