Miniature Components
Manufacturing of small-diameter connector parts, micro-pins, contact extensions, and precision spacers using Swiss machining and EDM for intricate geometries and ultra-tight tolerances.
M.A.R.'s Engineering manufactures precision turned components for electrical and electronic connectors with tight tolerances, repeatable quality, and scalable production. From miniature contact parts to threaded connector features and finished assemblies, our in-house machining capabilities help OEMs and industrial buyers source reliable parts from prototype through high-volume runs.

Precision machining solutions for connector parts, miniature features, threaded elements, and production-ready finishing.
Manufacturing of small-diameter connector parts, micro-pins, contact extensions, and precision spacers using Swiss machining and EDM for intricate geometries and ultra-tight tolerances.
Production of custom connector bodies and related fittings with threads, grooves, ports, and complex profiles completed in a single setup for dimensional consistency.
High-precision Swiss machining for slender, complex connector components requiring close-tolerance turning, drilling, threading, and milling in one efficient process.
CNC turning for cylindrical connector parts and related hardware, supporting prototypes through production with repeatable feature relationships and broad material compatibility.
Precision screws, studs, inserts, and threaded standoffs for connector assemblies, produced with accurate thread forms and consistent repeatability across larger runs.
In-house plating, polishing, deburring, and light assembly services that help deliver connector components ready for installation and end-use performance.
For electrical and electronic connector applications, part consistency is critical to fit, conductivity, and assembly performance. M.A.R.'s Engineering combines Swiss machining, CNC turning, screw machining, EDM, and in-house finishing to produce turned components with close tolerances, strong repeatability, and streamlined lead times. Whether you need prototypes, custom geometries, or high-volume production, our integrated process helps reduce sourcing complexity while maintaining traceability and quality.

See how precision machining and integrated production support reliable connector component supply.
Built for buyers who need precision, consistency, and dependable production support.
Family-owned since 1964 with decades of precision machining expertise across demanding connector applications.
Machining, EDM, finishing, and light assembly in one facility reduce delays and vendor handoffs.
ISO compliant quality systems support traceability, repeatability, and close-tolerance production consistency.
From prototypes to high-volume runs, equipment supports efficient production without sacrificing accuracy.
Family-run manufacturing expertise since 1964.
M.A.R.'s Engineering Company Inc. was founded in 1964 by Manuel and Reine Ambrosio and has remained a family-run precision manufacturing business ever since. Over the decades, the company expanded its capabilities through new equipment, a second operations department, multi-spindle capacity, CNC machining, and in-house Wire EDM. That steady investment allows us to support customers needing close-tolerance turned parts, faster prototype-to-production transitions, and fewer vendor handoffs. Today, M.A.R.'s Engineering continues to serve industries such as electronics, communications, aerospace, medical, and industrial manufacturing with a practical focus on quality, responsiveness, and long-term customer relationships.
Electronic connectors commonly include pins, sockets, contacts, shells, inserts, spacers, threaded hardware, and insulating support elements. In turned metal connector manufacturing, critical components often include precision pins, sleeves, contact extensions, threaded standoffs, and custom bodies. These parts must hold tight tolerances so they fit correctly, maintain alignment, and support reliable electrical and mechanical performance during assembly and use.
Talk with our team about tolerances, materials, and production options.
Supports documented quality and traceability.
Quality practices aligned with inspection standards.
Long-standing manufacturing experience and trust.
Share your part requirements, quantities, materials, or drawings, and our team will review the best manufacturing 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.