Line up the scope first
Check that each quote covers the same revision, quantity, material, finish, extra operations, inspection, packaging and delivery point.
A quote that leaves out finishing or inspection can look cheaper while the cost just shows up later.
Read the assumptions and what is excluded
Suppliers often assume different things. Look for differences like these:
- Tolerances applied where the drawing is silent
- Who pays for tooling or fixtures
- Material substitutions
- Freight and packaging
- Material certificates and first-article inspection
Check when the lead time starts
Lead time can start at the purchase order, at drawing approval, when material arrives, or at some other point. Ask what starts the clock and whether finishing is included.
On a tight schedule, a supplier you trust to hit the date and keep you posted can be worth more than a small price difference.
Look past the piece price
A good fit also means the right capability, a solid quality process, quick answers, reasonable shipping, consistent repeat orders, clean paperwork and room to grow with you.
The best quote is the one that fits the whole job and the risk you can live with, not just the smallest number.