CNC Turning
Precision turning for aluminum shafts, bushings, fittings, and threaded parts with live tooling support for multi-feature components and repeatable dimensional accuracy across prototype and production quantities.
Get precision-machined aluminum parts and complete metal manufacturing support from a family-run shop with nearly 60 years of experience. M.A.R.'s Engineering delivers tight-tolerance turning, milling, screw machining, EDM, finishing, and assembly in one facility, helping OEMs and industrial buyers reduce lead times, simplify sourcing, and maintain consistent quality from prototype through production.
From prototypes to production runs, we machine aluminum parts with integrated in-house processes for accuracy, speed, and consistency.
Precision turning for aluminum shafts, bushings, fittings, and threaded parts with live tooling support for multi-feature components and repeatable dimensional accuracy across prototype and production quantities.
Swiss-type machining produces small, complex aluminum components with ultra-tight tolerances, excellent stability, and multiple operations completed in a single setup for efficient manufacturing.
4-axis CNC milling supports custom aluminum parts with intricate geometries, machining blanks, and finished components for demanding industrial and OEM applications.
Wire EDM handles conductive materials and intricate part profiles requiring sharp internal corners, detailed features, and high repeatability where conventional machining is limited.
Single- and multi-spindle screw machining delivers efficient aluminum part production for short, medium, and high-volume runs with strong cost control and consistent quality.
In-house plating, polishing, deburring, powder coating, and light assembly help deliver aluminum parts that are production-ready and matched to end-use requirements.
M.A.R.'s Engineering helps customers streamline custom aluminum part production by combining machining, finishing, and light assembly under one roof. With capabilities spanning CNC turning, Swiss machining, milling, EDM, and grinding, the team supports everything from prototypes to high-volume runs while maintaining tight tolerances, traceability, and dependable repeatability. The result is faster turnaround, fewer vendor handoffs, and better control over quality and cost.
See how precision machining and integrated production support help customers meet demanding part requirements.
"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."
"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."
"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."
Manufacturing buyers rely on us for precision, responsiveness, and complete in-house support.
Family-owned since 1964 with decades of precision machining knowledge across complex metal components.
Machining, finishing, and light assembly in one facility reduce delays and simplify vendor management.
ISO compliant processes and full traceability support tight tolerances and repeatable production quality.
Single-spindle, multi-spindle, CNC, EDM, and grinding capabilities support prototype through high-volume runs.
Built on decades of family-run machining expertise.
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, and newer CNC technology. Under Manny Blaine Ambrosio's leadership, the business continued investing in advanced machining and in-house Wire EDM to improve quality control, micro-finish, and tolerance performance. Today, M.A.R.'s Engineering serves customers that need dependable custom parts, responsive production support, and a single-source partner for machining, finishing, and assembly. The company's long-term vision centers on precision, consistency, and practical manufacturing solutions that save customers time and cost.
M.A.R.'s Engineering machines a wide range of custom aluminum parts, including shafts, pins, bushings, sleeves, fittings, connectors, threaded components, flanges, couplings, and miniature precision parts. The shop supports both simple turned parts and more complex components with milled flats, cross-holes, grooves, threads, and other critical features produced to close tolerances.
Talk with our team about materials, tolerances, and production needs.
Quality-focused manufacturing and documented process control.
Supports disciplined inspection and quality practices.
Positive customer feedback and local trust.
Share your part requirements, quantities, materials, and drawings. Our team will review your machining needs and follow up 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.