The decision of domestic vs overseas machining is rarely settled by the unit price on a quote. Overseas suppliers can offer lower piece prices on stable, high-volume work, and many produce good parts. Domestic shops typically cost more per piece but can shorten lead time, simplify communication and reduce the cost of problems. A fair comparison looks at total landed cost and risk, not only the number on the first page.
Domestic vs overseas machining: side-by-side comparison
| Factor | Domestic (US) shop | Overseas supplier |
|---|---|---|
| Unit price index | 1.0 | Often about 0.5 to 0.8 on stable volume work |
| Landed cost | Unit price plus domestic freight | Unit price plus international freight, duties, tariffs, brokerage and carrying cost |
| Lead time | Typically 2 to 6 weeks door to door | Production time plus about 4 to 6 weeks ocean transit, or higher cost air freight |
| Communication | Same or near time zone; drawing questions resolved quickly | Time zone gap; questions can add days per cycle |
| IP exposure | US law and contracts apply directly | Depends on supplier, contracts and jurisdiction |
| Quality documentation | Material certs, FAI and CMM reports reviewed in the same country | Available from good suppliers; verification is harder at distance |
| Tariffs and trade rules | Not applicable | A variable that can change during a program |
| Best fit | Prototypes, changing designs, regulated or defense work, urgent or moderate volumes | Mature designs at high, steady volume with long planning horizons |
What goes into landed cost
Landed cost is the price per part delivered to your dock, ready to use. For overseas work it includes the piece price, international freight, customs brokerage, duties and any tariffs, plus the cost of holding extra inventory to cover long transit. Add the expected cost of quality escapes: a nonconforming lot found on arrival can mean weeks of delay and an expedited domestic replacement. Tariffs deserve their own line, because rates have changed several times in recent years and can shift the math on a program that was sourced under different rules.
When domestic machining wins
- Prototypes and early production. Design changes are frequent and fast turnaround matters more than piece price.
- Regulated, defense or specialty-metals work. Programs that require DFARS-compliant material sourcing or domestic manufacture.
- Tight or complex tolerances. Direct access to the shop's inspection team shortens the loop when a feature needs discussion.
- Moderate volumes and variable demand. Smaller, more frequent orders reduce inventory and cash tied up in transit.
When overseas still makes sense
Overseas sourcing is a reasonable choice for mature designs with stable demand, high annual volume and long planning horizons, where the supplier has a proven quality record on the part. Many companies use both: a domestic shop for prototypes, bridge production and urgent orders, and an overseas supplier for steady high-volume runs. That approach keeps a qualified second source available if trade rules, freight costs or quality change.
Common mistakes
- Comparing unit price without freight, duty, tariff and inventory cost.
- Releasing drawings with open questions, which multiplies delay across time zones.
- Skipping first article inspection on the first overseas lot.
- Having no qualified backup supplier for a single-sourced part.
A simple way to compare
Build a one-page worksheet for each part. List the unit price, freight per part, duty and tariff rate, brokerage, the number of weeks of safety stock you would carry and your cost of capital. Then add an allowance for one late or rejected lot per year. Compare the totals at your real annual volume, not a hypothetical one. This exercise often shows that the answer differs by part: high-volume simple parts may favor overseas, while low-volume or complex parts favor domestic.
How this applies at Wexmar
Wexmar is a small US machine shop in Canastota, New York, shipping nationwide. We run CNC lathes with live tooling, Mazak horizontal machining centers and Maier Swiss machines, described on our capabilities page. DFARS specialty-metals sourcing is available, and material certs, FAI and CMM reports can be supplied with orders, as outlined on our inspection and quality page. Our quality system is aligned with ISO 9001:2015. Customers often use us for prototypes, bridge builds, reshored parts and programs where lead time and documentation matter. For more side-by-side decisions, see our comparison pages.
Getting a quote
If you are comparing a domestic price to an overseas quote, send us the drawing and target quantity and we will price it straight. You can upload a drawing for an instant estimate in PDF or STEP, and a human estimator confirms every quote. You can also reach us at (315) 400-2654.