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Precision Custom Components Manufacturing Services

From prototype runs to high-volume production, M.A.R.'s Engineering delivers precision custom components with tight tolerances, full traceability, and integrated in-house processes. Backed by decades of machining experience, the team helps manufacturers reduce lead times, simplify sourcing, and maintain consistent quality across miniature parts, threaded components, fittings, and other critical machined products.

Precision machined custom components on a workbench

Our Precision Custom Components Services

Complete in-house machining and production services for complex custom components across prototype and high-volume manufacturing needs.

Miniature Components

Manufacturing for small-diameter, high-complexity parts using Swiss machining and EDM, ideal for micro-pins, spacers, contact extensions, and other ultra-tight tolerance components.

Threaded Fasteners

High-volume production of screws, bolts, studs, inserts, and threaded standoffs with consistent thread accuracy, repeatability, and in-house plating options.

Fittings Connectors

Precision hydraulic fittings, adapters, hose barbs, and custom connectors produced with tight tolerances, strong sealing performance, and complex multi-feature geometry.

Bushings Sleeves

Close-tolerance bushings and sleeves manufactured with CNC turning and centerless grinding for precise fit, smooth finishes, and dependable wear performance.

Shafts Pins

Custom shafts and pins produced to exact dimensional standards with optional grinding, threading, grooves, cross-holes, and finishing for demanding assemblies.

Flanges Couplings

Precision flanges and couplings machined for structural, hydraulic, and mechanical applications with accurate bore, face, and bolt-circle relationships.

End-To-End Manufacturing

Built For Tight Tolerances And Scale

M.A.R.'s Engineering provides precision custom components manufacturing for customers who need accuracy, repeatability, and fewer production handoffs. With Swiss machining, CNC turning, screw machining, EDM, grinding, finishing, and light assembly under one roof, the company supports everything from prototypes to large-volume runs. That integrated approach helps shorten lead times, control quality, and deliver ready-to-install parts with dependable dimensional consistency.

Technician inspecting precision machined components
Trusted Manufacturing Partner

Success Stories

See how precision, consistency, and integrated production support demanding component manufacturing 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."

Tom O'Keefe
Tom O'Keefe

"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."

Tom O'Keefe
Tom O'Keefe

"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."

Tom O'Keefe
Tom O'Keefe
The M.A.R.'s Difference

Why Choose M.A.R.'s Engineering?

Customers rely on M.A.R.'s Engineering for precision manufacturing that combines experience, capability, and dependable quality control.

Experience

Family-owned since 1964, with decades of expertise in close-tolerance component manufacturing.

Integration

In-house machining, finishing, and light assembly reduce delays, handoffs, and outside vendor coordination.

Precision

Capabilities include tolerances up to 0.0001 inches for critical parts and fine surface finishes.

Traceability

ISO-compliant quality systems support consistent output, inspection control, and full dimensional traceability.

About Our Team

Built on decades of machining experience.

M.A.R.'s Engineering Company Inc. was founded in 1964 by Manuel and Reine Ambrosio and has remained a family-run business ever since. Over the years, the company expanded its capabilities through new equipment, a second operations department, multi-spindle capacity, and newer CNC technology. Leadership continuity has remained a defining strength, with Manny Blaine Ambrosio growing up in the business, managing operations by 1990, and purchasing the company in 1996. Today, M.A.R.'s Engineering continues to focus on precision screw machining and complete manufacturing services that help customers move from prototype to production with fewer vendors, tighter quality control, and dependable turnaround.

Since 1964Family-owned precision manufacturing experience spanning almost 60 years.
35 MachinesSingle-spindle screw machine capacity for flexible production volumes.
One FacilityIntegrated machining, finishing, and assembly under one roof.

Frequently Asked Questions

What are precision components?

Precision components are parts manufactured to very tight dimensional tolerances so they fit, move, seal, or perform exactly as intended in an assembly. These parts often require controlled surface finishes, repeatable geometry, and consistent material properties. Common examples include pins, bushings, fittings, threaded parts, shafts, and miniature machined components used in aerospace, medical, electronics, and industrial equipment.

What is a precision manufacturer?

What are examples of precision components?

What are precision machined components?

What is precision parts manufacturing?

What are precision engineering components?

What are precision-turned components?

Can you handle both prototypes and high-volume production?

Still Have Manufacturing Questions?

Talk with our team about tolerances, materials, and production options.

Certified & Trusted

Awards and Recognition

ISO compliant certification badge

ISO Compliant

Quality-focused manufacturing systems and documented process control.

Mil-1-45208A compliance badge

Mil-1-45208A

Compliance supports disciplined inspection and quality practices.

Family-owned since 1964 trust badge

Family-Owned Since 1964

Long-standing manufacturing experience customers can trust.

Start Your Precision Components Project

Share your part requirements, quantities, materials, or drawings, and our team will help you evaluate the right manufacturing approach.

Contact Us Today

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.