Inside AA Precision Machine Co., Inc.: A CNC Precision Machining Job Shop Built on Precision and Pride
The hum of a CNC milling center running a titanium aerospace bracket at 3 a.m. is a sound that defines a certain kind of American shop. At AA Precision Machine Co., Inc. in Fall River, Massachusetts, that sound has been part of the background for more than five decades. Walk the floor and you'll find machines running tight-tolerance work — a housing for defense hardware here, a prototype mechanical assembly for an industrial OEM there — alongside operators who understand that a few tenths off tolerance isn't a minor inconvenience. It's a rejection, a rework, and a conversation nobody wants to have. This shop was built to avoid that conversation.
Fall River sits at the edge of southeastern Massachusetts, a former textile city that reinvented itself through grit and diversified manufacturing. AA Precision fits that profile: a company that didn't chase trends, didn't pivot every few years, and didn't rely on a single customer or a single industry to survive. It built a reputation doing hard work correctly, and it has sustained that reputation since 1969.
More Than Fifty Years of Earned Trust
Founded over 50 years ago, AA Precision Machine has operated continuously through recessions, technology shifts, and the hollowing-out of American manufacturing that took too many shops like it off the map. The fact that it's still running — and still holding tolerances — speaks to something more than luck. It speaks to the kind of operational discipline that procurement managers learn to recognize quickly: consistent quality, on-time delivery, and the ability to handle complexity without drama.
The shop serves aerospace, defense, and industrial equipment customers across New England and nationwide. That geographic reach matters. A shop anchored in Massachusetts with customers across the country isn't a local convenience — it's a qualified supplier that earned its way into those supply chains by performing.
Technology on the Floor
AA Precision runs a capable and practical equipment lineup. Multi-axis CNC milling centers handle complex contoured work, prismatic parts, and structural components that require multiple setups or simultaneous axis movement. CNC lathes cover turned components across a range of diameters and materials. The shop also operates both wire EDM and sinker EDM — a combination that expands what's possible in terms of fine detail, internal geometry, and hard-material work that conventional cutting tools can't cleanly address.
The large-format machining envelope is worth noting specifically. AA Precision can handle parts up to 80 inches by 30 inches and larger — a capability that separates serious job shops from light-duty operations. Machine frames, structural brackets, and large housings require real estate on the table and rigidity in the setup. Not every shop can deliver that. This one can.
On the quality and finishing side, the shop supports its machining with CMM inspection, welding, in-house assembly, pressure testing, and non-destructive testing. That's a turnkey capability set. For procurement teams managing complex assemblies, the ability to source machining, inspection, and basic assembly from a single supplier isn't a luxury — it's a lead time and cost advantage.
What They Actually Make
AA Precision produces custom complex components across a range of geometries and materials. The work includes tight-tolerance machined parts, structural brackets, housings, machine frames, and prototype mechanical assemblies. The customer base spans aerospace platforms, defense programs, and industrial machinery — sectors that share a common requirement: parts that work the first time and hold up in service.
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The shop operates across the prototype to low-volume contract manufacturing spectrum. That's a deliberate positioning. High-volume commodity work belongs to shops optimized for it. AA Precision focuses on the harder end of the job shop market — the work that requires engineering engagement, process discipline, and the kind of attention that doesn't scale easily to mass production. Engineers developing new components or procurement managers qualifying a new supplier for a critical part will find a shop that has navigated that territory before.
What Makes This Shop Different
Several things distinguish AA Precision from the broader job shop market, and none of them are accidental.
First, longevity as a proxy for capability. A shop that has operated since 1969 without interruption has navigated customer attrition, technology transitions, and economic contractions. It has retained knowledge, refined its processes, and built the kind of institutional competency that newer operations are still working toward.
Second, the EDM capability alongside CNC machining. Many shops mill and turn. Fewer maintain both wire and sinker EDM in-house. For customers dealing with hard alloys, tight internal radii, or complex die work, that combination under one roof reduces handoffs and protects schedule.
Third, large-envelope machining paired with precision work. The ability to hold tight tolerances on a small precision component and also fixture and machine an 80-inch structural frame in the same shop is an uncommon combination. It means AA Precision can support a broader range of assembly requirements without forcing customers to split work across multiple vendors.
Fourth, turnkey capability. Assembly, pressure testing, and NDT in-house means the shop delivers finished, verified hardware — not just machined stock that needs downstream processing elsewhere.
For sourcing and engineering teams doing supplier research, the AA Precision Machine website provides a direct look at their capabilities, equipment, and the types of work they support. It's a useful starting point for qualifying the shop against a specific program or part family.
About AA Precision Machine Co., Inc.
- Founded: 1969
- Location: Fall River, Massachusetts
- Employees: 10–49
- Core Capabilities: Precision CNC milling and turning, wire EDM, sinker EDM, large-format machining, CMM inspection, welding, in-house assembly, pressure testing, non-destructive testing
- Markets Served: Aerospace, defense, industrial equipment
- Production Range: Prototype through low-volume contract manufacturing
- Part Size Envelope: Up to 80 in. x 30 in. and larger
- Website: aaprecisionmachine.com
Where to Find Them
AA Precision Machine Co., Inc. is located in Fall River, Massachusetts, serving customers across New England and the broader United States. Procurement managers, program engineers, and operations teams evaluating contract machining partners can review their capabilities and contact the shop directly through their website.
Visit AA Precision Machine Co., Inc.
This is a shop that does the work. It has been doing it since before a lot of its competitors were founded. In a market where supplier qualification takes time and trust is earned slowly, that kind of track record is worth paying attention to.
