Swiss Machining
Produce small, complex turned parts with exceptional stability and tolerances as tight as ±0.0001 inches, ideal for miniature components, long slender profiles, and intricate multi-operation features.
From prototype runs to high-volume production, M.A.R.'s Engineering delivers precision turned components with tight tolerances, consistent repeatability, and integrated in-house processes. Backed by decades of screw machining expertise, CNC capability, EDM, grinding, and finishing, the team helps manufacturers reduce lead times, simplify sourcing, and receive ready-to-install parts built to exact specifications.
Precision machining solutions for miniature parts, production runs, tight tolerances, and fully finished components.
Produce small, complex turned parts with exceptional stability and tolerances as tight as ±0.0001 inches, ideal for miniature components, long slender profiles, and intricate multi-operation features.
Machine cylindrical components such as shafts, bushings, fittings, and threaded parts with consistent dimensional relationships, live tooling capability, and support for prototype through production quantities.
Support short, medium, and high-volume runs using single-spindle and multi-spindle equipment that performs multiple operations in one setup for speed, repeatability, and lower per-part costs.
Create intricate features, sharp internal corners, and detailed profiles in conductive materials, including hardened alloys, while maintaining tight tolerances and excellent repeatability.
Achieve ultra-fine finishes and diameter tolerances up to 0.0001 inches for shafts, pins, tubing, and other cylindrical parts requiring precise fit and smooth performance.
Complete parts in-house with plating, polishing, deburring, coating, and light assembly services that streamline production and deliver components ready for installation or shipment.
M.A.R.'s Engineering provides custom turned components and machining services for customers who need close tolerances, dependable repeatability, and fewer production handoffs. With Swiss machining, CNC turning, screw machining, EDM, grinding, and finishing under one roof, the company supports everything from prototypes to large-volume runs while improving lead times, controlling quality, and reducing the complexity of managing multiple vendors.
See why manufacturers rely on consistent quality, tight tolerances, and responsive production support.
"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."
Manufacturers choose M.A.R.'s Engineering for precision, flexibility, and integrated production support.
Family-owned since 1964, with decades of precision machining knowledge across demanding industries.
Machining, EDM, grinding, finishing, and light assembly in one facility reduce delays.
ISO compliant processes and full traceability support tight tolerances and repeatable output.
Prototype quantities through high-volume runs are supported with single and multi-spindle capacity.
Built on decades of machining expertise.
M.A.R.'s Engineering Company Inc. was founded in 1964 by Manuel and Reine Ambrosio as a family-run precision machining business focused on close-tolerance screw machining. 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 has allowed M.A.R.'s Engineering to support customers with a more complete manufacturing workflow, from prototyping through production and finishing. Today, the company continues to build on its long-standing reputation for dependable service, dimensional consistency, and practical manufacturing support that helps customers simplify sourcing, reduce lead times, and receive quality parts from a single trusted facility.
Turned parts are components made on lathes or screw machines from bar stock or similar raw material. Common examples include shafts, pins, bushings, sleeves, threaded fasteners, inserts, fittings, connectors, spacers, couplings, and miniature precision parts. These components are often used in aerospace, medical, electronics, automotive, and industrial assemblies where diameter control, concentricity, and surface finish are critical.
Talk with our team about tolerances, materials, lead times, and production options.
Quality-focused manufacturing systems and documented process control.
Compliance supports disciplined inspection and quality practices.
Positive customer feedback reflects dependable service.
Share your drawings, quantities, materials, and tolerance requirements, and our team will review your project and next steps.
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.