Start with identical part files
Ask each supplier to quote the same drawing revision, model, material, quantity, finish, and inspection requirements. A price comparison is unreliable if one offer uses a different revision or leaves out a required operation.
Understand what drives the quote
- Material type, stock size, and required condition.
- Part geometry, feature access, setups, and machining time.
- Order quantity and whether setup costs are spread across parts.
- Secondary finishing, inspection records, packaging, and delivery.
These are project factors, not a universal price formula. Ask the supplier to identify assumptions and exclusions that affect the total.
Look for design choices that can be reviewed
Where the design allows, discuss nonfunctional tolerances, feature access, deep pockets, threads, and material alternatives with the supplier. Any change to the approved design or acceptance criteria must be reviewed and approved by the responsible design authority.
Compare delivery and acceptance terms
Check inspection scope, required records, packaging, shipping terms, requested dates, and quote validity. A lower total may not be comparable if it excludes finishing or required documentation.
Choose on value and evidence
Review the complete scope and the supplierâs documented response to the RFQ. Confirm project-specific schedule and production site directly. Do not rely on an unsupported âlowest priceâ or âbest priceâ claim.