CNC Turning
Precision turning for Aluminum 6082 shafts, bushings, fittings, and threaded components with consistent dimensional control across prototype and production quantities.
Get precision-machined Aluminum 6082 parts backed by nearly 60 years of manufacturing experience. M.A.R.'s Engineering delivers prototype-to-production support, tight tolerances, and integrated finishing from its San Leandro facility, helping OEMs and industrial buyers streamline sourcing, reduce lead times, and receive consistent quality for complex custom components.

From prototypes to production runs, we machine Aluminum 6082 parts with precision, speed, and integrated in-house support.
Precision turning for Aluminum 6082 shafts, bushings, fittings, and threaded components with consistent dimensional control across prototype and production quantities.
4-axis CNC milling for custom Aluminum 6082 parts requiring intricate profiles, drilled features, flats, slots, and accurate multi-face machining.
Swiss-type machining for small, complex Aluminum 6082 components with tight tolerances, fine features, and stable accuracy on slender geometries.
Single and multi-spindle screw machining for cost-efficient Aluminum 6082 parts in short, medium, and high-volume production runs.
Secondary grinding for Aluminum 6082 cylindrical parts that need refined diameters, smoother finishes, and close tolerance control.
In-house plating, polishing, deburring, coating, and light assembly services to deliver Aluminum 6082 parts ready for installation or next-stage use.
M.A.R.'s Engineering machines custom Aluminum 6082 parts for buyers who need strength, machinability, and dependable repeatability. Whether you need turned components, milled features, or high-volume screw machined parts, our San Leandro team supports the full workflow in one facility. That means tighter process control, fewer vendor handoffs, and faster delivery of parts built to demanding dimensional and finish requirements.

See how precision machining and integrated production help customers simplify sourcing and maintain consistent part quality.
We combine deep machining experience with integrated in-house capabilities to keep projects accurate, efficient, and easier to manage.
Family-owned since 1964, with decades of precision machining knowledge across complex custom component applications.
Turning, milling, EDM, finishing, and assembly in San Leandro reduce delays from multi-vendor coordination.
ISO-compliant processes and traceability support consistent Aluminum 6082 part quality from prototype through production.
From Bay Area prototypes to high-volume runs, equipment capacity supports fast transitions and lower per-part costs.
Built on family ownership and machining expertise.
M.A.R.'s Engineering Company Inc. was founded in 1964 by Manuel and Reine Ambrosio and has remained family-run ever since. Over the decades, the company expanded from precision screw machining into a broader in-house manufacturing operation with CNC machining, multi-spindle production, Wire EDM, finishing, and assembly support. Operating from San Leandro, the team serves manufacturers that need dependable tolerances, responsive communication, and fewer supply-chain handoffs across the Bay Area and beyond. That long-term vision is simple: deliver custom machined parts with consistent quality, practical lead times, and the kind of hands-on service that keeps customer programs moving from prototype through full production.
Custom aluminum machining cost is typically influenced by part geometry, tolerance requirements, quantity, setup time, material size, and any secondary operations such as plating or polishing. Simple turned parts in larger volumes usually cost less per piece than complex milled components with tight tolerances. Combining machining, finishing, and assembly in one shop can also reduce total project cost and administrative overhead.
Talk with our team about materials, tolerances, and production needs.
Quality-focused manufacturing process controls
Aligned with strict inspection standards
Verified customer satisfaction signal
Send your drawings, quantities, and specifications, and our team will review your project and respond with next-step guidance.
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.