Better RFQ inputs produce faster clarification, more comparable quotes and fewer assumptions before production.
Key takeaways
Send both a 3D CAD model and a controlled 2D drawing.
Separate critical tolerances from general dimensions.
State prototype quantity, expected repeat volume and documentation needs.
01
Provide the current design files
A 3D model communicates geometry efficiently, while the 2D drawing remains important for tolerances, datums, threads, finishes and notes. Identify the drawing revision so every supplier quotes the same design.
02
Define material and condition
State the exact material grade, specification and condition when these affect function. If alternatives are acceptable, say which properties must be maintained rather than asking the supplier to guess.
- Material grade or approved equivalent
- Temper or heat-treatment condition
- Required certificates
- Restricted substances or declarations
03
Separate critical requirements
Highlight the dimensions and relationships that drive function. This helps the supplier plan workholding, process sequence and inspection around the right features.
- Datum structure
- Geometric tolerances
- Threads and sealing surfaces
- Surface finish
- Cosmetic or no-mark areas
04
Share quantity and timing context
Quote strategy can change between a one-off prototype, a bridge-production batch and recurring demand. Provide prototype quantity, expected annual volume, release pattern and target date when available.
05
State inspection and documentation needs
Request dimensional reports, material certificates or other records at the RFQ stage. Documentation added after production may require work that was not included in the original plan.
Julie Cai
Project contact connecting international customers with MIM Precision's manufacturing and engineering review team.
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