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.
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.

End-to-end machining solutions for aerospace and defense parts requiring tight tolerances, repeatability, and production flexibility.
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.
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 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 achieves ultra-fine finishes and diameter tolerances as close as 0.0001 inches for pins, shafts, and other cylindrical components used in critical assemblies.
Miniature precision component manufacturing supports micro-scale parts, complex geometries, and high-aspect-ratio profiles for aerospace and defense applications with zero-defect expectations.
In-house finishing, plating, polishing, and light assembly help deliver ready-to-install parts while improving corrosion resistance, surface performance, and overall production efficiency.
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.

See why precision-focused manufacturers rely on M.A.R.'s Engineering for demanding aerospace and defense machining work.
Aerospace and defense projects demand precision, consistency, and dependable production support.
Nearly 60 years of family-run machining experience supporting complex, close-tolerance component manufacturing.
Machining, EDM, grinding, finishing, and light assembly in one facility reduce delays and vendor handoffs.
ISO-compliant processes and aerospace-focused controls support repeatability, documentation, and dimensional consistency.
From prototypes to high-volume runs, equipment supports efficient production without sacrificing precision.
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.
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.
Talk with our team about specs, tolerances, and production needs.
Supports documented quality and consistency.
Quality requirements for inspection systems.
Long-standing precision manufacturing experience.
Share your part requirements, quantities, and specifications, and our team will review the best machining approach for your project.
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.
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.