Swiss Screw Machining
Produce small, intricate parts with exceptional stability and tolerances as tight as ±0.0001 inches using sliding headstock Swiss-type machining for complex geometries.
Get precision CNC Swiss lathe machining services for complex, small-diameter parts with tight tolerances and dependable repeatability. Whether you support aerospace, medical, electronics, or industrial manufacturing in Cincinnati, M.A.R.'s Engineering delivers prototype-to-production capability, consolidated in-house operations, and traceable quality for components that demand accuracy, consistency, and efficient turnaround.

Precision machining solutions for miniature, complex, and high-tolerance components from prototype through production.
Produce small, intricate parts with exceptional stability and tolerances as tight as ±0.0001 inches using sliding headstock Swiss-type machining for complex geometries.
Manufacture micro-scale precision parts such as pins, spacers, contact extensions, and slender profiles where conventional machining cannot maintain required accuracy.
Machine cylindrical components with live tooling and sub-spindle capability to combine turning, drilling, milling, and threading in fewer setups.
Create sharp internal corners, intricate outlines, and hardened-material features that complement Swiss-machined parts and custom tooling requirements.
Achieve ultra-fine finishes and diameter tolerances up to 0.0001 inches for shafts, pins, and cylindrical parts requiring precise fit.
Complete parts in-house with plating, polishing, deburring, and light assembly to streamline delivery and reduce outside vendor delays.
CNC Swiss lathe machining is ideal for producing small, complex components with outstanding dimensional control, surface finish, and repeatability. M.A.R.'s Engineering supports Cincinnati manufacturers with prototype and production machining backed by integrated in-house processes, helping reduce lead times and vendor handoffs. For industries where slender geometries, fine threads, and close-tolerance bores matter, Swiss machining delivers stable, efficient, and highly consistent results.

See how precision machining expertise supports demanding parts, repeatable quality, and efficient production outcomes.
Built on decades of machining experience, our team delivers precision, consistency, and streamlined production support.
Family-owned machining expertise built over almost 60 years of precision manufacturing experience.
In-house machining, EDM, finishing, and assembly help Cincinnati buyers reduce delays and vendor coordination.
ISO compliant systems and full dimensional traceability support consistent output for critical-tolerance components.
From prototypes to high-volume runs, we support Cincinnati-area supply chains with scalable machining capacity.
Experienced specialists focused on precision manufacturing excellence.
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 capabilities, multi-spindle production, Wire EDM, finishing, and assembly support. That growth reflects a practical, production-minded approach valued by manufacturers in Cincinnati, where dependable turnaround and repeatable quality matter across aerospace, medical, electronics, and industrial work. By investing in newer equipment and maintaining a customer-service-oriented culture, M.A.R.'s Engineering continues to help customers simplify sourcing, reduce lead times, and move from prototype to full production with one accountable manufacturing partner.
Standard CNC turning rotates the workpiece in a fixed spindle, while Swiss CNC uses a sliding headstock and guide bushing that supports the bar stock right at the cutting zone. That added support reduces deflection and vibration, making Swiss machining especially effective for small-diameter, long, slender, and highly detailed parts that require very tight tolerances and excellent repeatability.
Talk with our team about tolerances, materials, and production requirements.
Serving Cincinnati manufacturers with precision machining support for prototype, repeat production, and specialized component requirements.
Machine Shop
Business Type
Mon-Fri Service
Availability
5.0 GBP Rating
Customer Rating
Confirm capabilities and turnaround for your part requirements.
Quality systems support traceable, consistent production.
Meets recognized inspection system requirements.
Long-standing manufacturing experience customers trust.
Share your part requirements, materials, tolerances, and production goals, and our team will 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.