CNC Turning
Precision turning for aluminum shafts, bushings, fittings, threaded parts, and other cylindrical components with consistent dimensional accuracy across prototype and production quantities.
Get precision aluminum parts with clean machining, detailed engraving, and dependable repeatability from M.A.R.'s Engineering. From prototypes to production runs, our in-house capabilities help streamline lead times, maintain tight tolerances, and deliver finished components ready for demanding industrial, aerospace, electronics, and custom manufacturing applications.

Precision aluminum machining and finishing services for prototypes, custom parts, and repeat production.
Precision turning for aluminum shafts, bushings, fittings, threaded parts, and other cylindrical components with consistent dimensional accuracy across prototype and production quantities.
Custom aluminum milling for intricate geometries, machined blanks, and finished parts using advanced multi-axis capability for efficient, repeatable production.
High-precision Swiss machining for small, complex aluminum parts requiring tight tolerances, fine features, and stable results across long or delicate profiles.
Wire EDM support for conductive materials and tooling applications that require intricate outlines, sharp internal corners, and highly repeatable precision features.
Fine-finish grinding for aluminum cylindrical parts where close diameter control, smooth surfaces, and consistent fit are critical to performance.
In-house plating, polishing, deburring, powder coating, and light assembly to deliver aluminum components with the required appearance, protection, and readiness.
M.A.R.'s Engineering delivers custom aluminum components with the speed, consistency, and control that complex manufacturing demands. By combining CNC machining, secondary processes, and in-house finishing under one roof, we reduce handoff delays and maintain tighter quality oversight. Whether you need engraved identification features, close-tolerance machined parts, or scalable production support, our team helps move projects from prototype to repeatable output efficiently.

See how precision, consistency, and in-house capabilities support demanding custom aluminum projects.
Built for precision work, repeatability, and efficient production from one experienced machine shop.
Family-owned machining expertise built over almost 60 years of precision manufacturing experience.
Machining, tooling, finishing, and light assembly in one facility reduce delays and vendor handoffs.
Processes support tolerances as close as 0.0001 inches for demanding aluminum component requirements.
ISO compliant production with traceability helps maintain consistent results from prototypes through volume runs.
Experienced machinists focused on precision and consistency.
M.A.R.'s Engineering Company Inc. has been family-run since 1964, when Manuel and Reine Ambrosio founded the business to specialize in precision screw machining of complex parts. Over the decades, the company expanded its capabilities through new equipment, a second operations department, multi-spindle capacity, and newer CNC technology. Under Manny Blaine Ambrosio's leadership, M.A.R.'s Engineering continued investing in advanced machining and in-house Wire EDM to improve quality control, micro-finish, and tooling responsiveness. Today, the company serves customers who need dependable machining support from prototype through production, with a practical focus on tight tolerances, streamlined project management, and complete manufacturing services delivered from a single facility.
M.A.R.'s Engineering supports a broad range of aluminum machining services, including CNC turning, CNC milling, Swiss screw machining, centerless grinding, EDM support, and in-house finishing. This allows customers to source machined aluminum parts, secondary operations, surface treatments, and light assembly from one facility, helping reduce lead-time gaps and maintain tighter quality control throughout production.
Talk with our team about your aluminum part requirements.
Quality-focused manufacturing and documented process control.
Compliance supports disciplined inspection standards.
Positive customer feedback on Google.
Share your part details, 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.