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Precision Machining Services for Aerospace & Defense

M.A.R.'s Engineering delivers tight-tolerance machining for aerospace and defense applications, combining Swiss machining, EDM, CNC turning, and finishing under one roof. From prototype parts to high-volume production, every component is built for repeatability, traceability, and dependable performance in mission-critical environments where dimensional accuracy and material integrity matter most.

Precision aerospace machining components

Our Precision Machining Services Services

End-to-end machining solutions for aerospace and defense parts requiring tight tolerances, repeatability, and production flexibility.

Swiss Machining

Swiss-type machining produces small, complex aerospace and defense components with exceptional stability, supporting tight tolerances, fine features, and multi-operation efficiency in a single setup.

EDM Machining

Wire EDM cuts conductive materials with sharp internal corners and intricate profiles, making it ideal for hardened alloys, tooling, and precision parts that conventional machining cannot easily produce.

CNC Turning

CNC turning supports cylindrical aerospace and defense parts such as shafts, bushings, fittings, and threaded components with consistent dimensional relationships across prototype and production runs.

Centerless Grinding

Centerless grinding achieves ultra-fine finishes and diameter tolerances as close as 0.0001 inches for pins, shafts, and other cylindrical components used in critical assemblies.

Precision Components

Miniature precision component manufacturing supports micro-scale parts, complex geometries, and high-aspect-ratio profiles for aerospace and defense applications with zero-defect expectations.

Finishing & Assembly

In-house finishing, plating, polishing, and light assembly help deliver ready-to-install parts while improving corrosion resistance, surface performance, and overall production efficiency.

Mission-Critical Precision

Built for Tight-Tolerance Critical Components

M.A.R.'s Engineering supports aerospace and defense manufacturers with integrated machining capabilities that reduce handoffs, shorten lead times, and maintain strict dimensional control. With Swiss machining, CNC turning, EDM, grinding, and finishing in one facility, the team can produce complex parts with full traceability and consistent quality. That means fewer delays, better repeatability, and dependable results from prototype through full production.

Technician inspecting machined aerospace part
Trusted Manufacturing Partner

Success Stories

See why precision-focused manufacturers rely on M.A.R.'s Engineering for demanding aerospace and defense machining work.

"We’ve had an excellent experience working with Mars. Their screw machining capabilities are top‑notch, and the precision of the parts they deliver is consistently impressive. The team is knowledgeable, responsive, and easy to work with, and their experience really shows in the results."

Tom O'Keefe
Tom O'Keefe

"We’ve had an excellent experience working with Mars. Their screw machining capabilities are top‑notch, and the precision of the parts they deliver is consistently impressive. The team is knowledgeable, responsive, and easy to work with, and their experience really shows in the results."

Tom O'Keefe
Tom O'Keefe

"We’ve had an excellent experience working with Mars. Their screw machining capabilities are top‑notch, and the precision of the parts they deliver is consistently impressive. The team is knowledgeable, responsive, and easy to work with, and their experience really shows in the results."

Tom O'Keefe
Tom O'Keefe
The M.A.R.'s Difference

Why Choose M.A.R.'s Engineering?

Aerospace and defense projects demand precision, consistency, and dependable production support.

Since 1964

Nearly 60 years of family-run machining experience supporting complex, close-tolerance component manufacturing.

Integrated Production

Machining, EDM, grinding, finishing, and light assembly in one facility reduce delays and vendor handoffs.

Traceable Quality

ISO-compliant processes and aerospace-focused controls support repeatability, documentation, and dimensional consistency.

Volume Flexibility

From prototypes to high-volume runs, equipment supports efficient production without sacrificing precision.

About Our Team

Family-run precision manufacturing with decades of experience.

M.A.R.'s Engineering Company Inc. has been family-run since its founding in 1964 by Manuel and Reine Ambrosio. Built on precision screw machining expertise, the company has expanded steadily through equipment investments, added capabilities, and long-term customer relationships earned through referrals and consistent performance. Over the years, M.A.R.'s Engineering added multi-spindle capacity, opened a CNC department, and brought Wire EDM in-house to improve quality control, tooling responsiveness, and tolerance capability. Today, the company continues to serve demanding industries such as aerospace and defense with an integrated manufacturing approach focused on precision, traceability, and efficient production from prototype through full-scale runs.

5.0 RatingGoogle Business Profile rating based on 4 reviews.
Since 1964Family-owned machining expertise spanning almost 60 years.
35 Screw MachinesSingle-spindle capacity for flexible production volumes.

Frequently Asked Questions

What types of aerospace and defense parts can you machine?

M.A.R.'s Engineering machines a wide range of aerospace and defense components, including miniature precision parts, shafts, pins, bushings, sleeves, fittings, connectors, threaded fasteners, inserts, flanges, and couplings. The shop supports both simple and highly complex geometries, including parts with fine threads, close-tolerance bores, cross-holes, and intricate profiles produced through Swiss machining, CNC turning, EDM, and grinding.

What tolerances can you hold for precision machining work?

Do you handle prototype and production quantities?

What materials do you machine for aerospace and defense applications?

Do you offer finishing and secondary operations in-house?

How does Swiss machining benefit aerospace and defense components?

What quality standards does M.A.R.'s Engineering follow?

Can you consolidate multiple machining processes under one roof?

Still Have Machining Questions?

Talk with our team about specs, tolerances, and production needs.

Certified & Trusted

Awards and Recognition

ISO compliant certification badge

ISO Compliant

Supports documented quality and consistency.

Mil-I-45208A compliance badge

Mil-I-45208A Compliance

Quality requirements for inspection systems.

Family-owned since 1964 recognition badge

Family-Owned Since 1964

Long-standing precision manufacturing experience.

Request Precision Machining Support

Share your part requirements, quantities, and specifications, and our team will review the best machining approach for your project.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 510-483-0541. You can also send us a quick email at info@marseng.com.