CNC Turning
Produce automotive shafts, bushings, fittings, and threaded components with precise dimensional control, live tooling capability, and support for both prototype and production quantities.
M.A.R.'s Engineering delivers precision automotive machined parts with tight tolerances, scalable production, and integrated finishing support. From prototypes to high-volume runs, our team helps Illinois manufacturers source consistent, ready-to-install components through one experienced machine shop partner focused on quality, traceability, and dependable turnaround.
Precision machining solutions for automotive components, from prototypes to repeat high-volume production with finishing and quality control.
Produce automotive shafts, bushings, fittings, and threaded components with precise dimensional control, live tooling capability, and support for both prototype and production quantities.
Manufacture small, complex automotive components with exceptional accuracy using Swiss-type machining suited for slender geometries, fine features, and ultra-tight tolerances.
Machine custom automotive shafts and pins with close diameter tolerances, fine surface finishes, and optional secondary features like grooves, threads, and cross-drilled holes.
Deliver dimensionally critical bushings and sleeves for automotive assemblies with tight bore control, smooth finishes, and material options for wear resistance.
Produce precision screws, studs, inserts, and standoffs for automotive applications with repeatable thread accuracy and efficient high-volume manufacturing capability.
Complete automotive parts with plating, polishing, deburring, and light assembly services that improve corrosion resistance, appearance, and readiness for installation.
Automotive programs demand repeatability, speed, and dependable quality. M.A.R.'s Engineering supports Illinois buyers with integrated machining, grinding, EDM, and finishing under one roof, helping reduce vendor handoffs and production delays. Whether you need prototype validation or steady release volumes, we manufacture close-tolerance parts with traceability, material flexibility, and processes designed for consistent performance in demanding assemblies.
See why manufacturers rely on consistent machining quality, responsive service, and scalable 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."
Automotive buyers choose us for precision, flexibility, and streamlined in-house production support.
Family-owned machining expertise built over decades of producing close-tolerance parts for demanding industries.
Illinois customers benefit from machining, EDM, grinding, and finishing coordinated through one accountable shop.
Single and multi-spindle equipment supports efficient automotive runs from prototypes to repeat production orders.
ISO-compliant processes help meet documentation, consistency, and inspection expectations common in Illinois manufacturing supply chains.
Family-run precision manufacturing with decades of experience.
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, centerless grinding, Wire EDM, finishing, and light assembly. That growth allows us to support customers seeking dependable automotive machined parts without the delays and complexity of managing multiple vendors. For Illinois manufacturers balancing quality requirements, production schedules, and supply chain efficiency, our approach offers a practical single-source solution. We continue investing in equipment, process control, and responsive service to deliver consistent parts for prototype, short-run, and high-volume production needs.
M.A.R.'s Engineering manufactures a wide range of automotive machined parts, including shafts, pins, bushings, sleeves, threaded fasteners, fittings, connectors, and other custom turned or milled components. The shop supports both simple and complex geometries, secondary features such as grooves or cross-holes, and finishing options that help deliver parts ready for assembly or further integration.
Talk with our team about materials, tolerances, and run quantities.
Supports controlled, traceable manufacturing processes.
Demonstrates documented inspection discipline.
Long-standing manufacturing experience and continuity.
Share your drawing, material, quantity, and tolerance requirements. 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.