CNC Machining in Mexico

Standard production lead time is 4 to 8 weeks, with first-article timing confirmed at the quote stage. Production in Mexico is positioned as the faster option, and rush programs can be reviewed case by case.

Standard machined tolerance is ±0.005 inch, and we hold down to ±0.0005 inch on critical features verified by CMM. Our engineering team confirms achievable tolerances against your drawing at the feasibility review.

We machine aluminum, steel, stainless steel, titanium, and engineering plastics. If your part calls for a specific alloy or temper, our engineering team confirms the best fit at the feasibility review.

There is no fixed unit minimum. Overseas machining often delivers its largest percentage savings at lower and prototype volumes, so you do not need high volume to benefit. The fit is about overall program value and ongoing potential rather than a single large run; we will tell you at the quote stage whether your part is a good fit and recommend the most cost-effective approach.

All production runs to ISO 9001 and IATF 16949 with in-process and CMM inspection. Every shipment includes a Certificate of Conformance and a dimensional inspection report, and third-party inspection is available on request.

You have one U.S. point of contact who manages quoting, programming, production scheduling, quality documentation, and logistics. There is no offshore quote desk between you and the production line.

Nearshoring CNC machining to Mexico shortens the supply chain to the U.S. market, qualifies most programs for USMCA duty-free treatment, and keeps a milling and turning machine shop within truck range of the border. Our facilities in Monterrey make plant tours practical and put one U.S. point of contact between you and the production line.

Truck transit from our Monterrey machine shops to most U.S. destinations runs 2 to 4 days, far shorter than the multi-week ocean transit from Asia. We manage cross-border freight and customs clearance so machined parts move to your dock without a gap.

We are the importer of record and manage customs clearance, then coordinate freight to your dock with tracking. Duties and freight are quoted up front, so there is no surprise on the invoice.

Over-specifying internal geometry is the most common mistake. Tight radii, fillet sizes, or edge-break callouts added for aesthetics rather than function drive up cycle time, and tolerances tighter than the function requires do the same. Our DFM review flags these cost drivers before quoting so you only pay for the precision the part actually needs.

Yes. Redstone can buy raw aluminum in the U.S., truck it to Mexico, machine it there, and export the finished parts. Because the aluminum originates in the U.S., it is not subject to the Section 232 tariff on foreign-produced metal. We run a material analysis to confirm composition where grade properties are specification-critical.

We catch issues before parts ship. If something fails, we contain the lot, run a 100% sort to establish the true escape rate, and complete root cause analysis before any corrective action. Redstone guarantees the parts, including repair, replacement, or refund, with air-freighted replacements when rework is not possible.