Precision Process by Fathom //
High-Precision Machining Experts
- Precision Machining of Exotic Materials
- Rapid Prototyping & Part Design Optimization
- Rigorous Protocols for Processing Medical Parts
Get a Quote
Start a Quote or Connect with Our Experts
No-Compromises High-Precision Machining
Engineered Solutions for Your Most Complex Machining Challenges
We’re High-Precision Machining Experts
At Precision Process by Fathom, we specialize in doing close tolerance, high-precision machining of hard-to-machine materials. We can meet a wide range of requirements for unique geometries, including profiling, turning, grinding, 3D milling and 4-axis milling.
From complex, tight-tolerance parts made from the world’s toughest metals to rigorous processing, cleaning and inspection protocols for medical device components, our team has deep expertise in all aspects of high-precision manufacturing.
Services & Capabilities

High-Precision Machining
We can meet a wide range of requirements for unique geometries, profiling, turning, grinding, and 3- and 4-axis milling with extremely tight tolerances.
Grinding
By combining CNC machining and high precision grinding in one room, we offer increased control, quality assurance and efficiency that result in lower production costs. Our equipment enables us to grind multiple diameters in one plunge and produce mirror-like surface finishes.


Wire & Sinker EDM
Wire EDM cutting is ideal for creating complex designs that may be challenging to fabricate using other cutting techniques or CNC machining. It can also cut sharp corners with minimal radii. Sinker EDM creates blind pockets in metal by “sinking” an electrode into the material. It’s used to create complex shapes, such as those needed for making molds, dies and other types of tooling.
Materials
We have extensive experience working with many types of metal, including exotic alloys:
- Stainless steel
- Tool steel
- Inconel
- Kovar
- Titanium
- Niobium
- Molybdenum
- TZM
- Aluminum
- CPM powder metal
- Plastics

For Every Step In Your
Product Lifecycle
From metal cutting and forming to CNC punching and spot welding, Precision Process by Fathom can manage your high-precision machining project from prototype to production. We offer a unique suite of on-demand services that can help you accelerate your time to market, backed by over four decades of experience and expertise.
Complex Parts & Tough Materials Are Our Specialty
Talk to our experts today to kick off your next project!

Prototype to Production //
Why Our Customers Choose Precision Process by Fathom
Engineering Support // At Precision Process by Fathom, we provide engineering support every step of the way. From design concept validation and prototyping to production release, our experienced engineers will work with you to optimize your designs for manufacturability and cost-effectiveness.
Quality Control // We provide 100% quality control on all products and strictly adhere to quality assurance procedures. We maintain an ISO 9001:2015 certification. Our metrology lab is equipped with three state-of-the-art CMM machines, visual inspection system, optical comparators and other standard measurement equipment.
“We choose Precision Process because of their reputation as a great company to do business with. We have stayed with them for over 5 years because they consistently deliver to meet our needs.” — Barbara Gramenz, 3M

Applications
We fabricate a wide variety of products for our discerning customers, including:
- Medical devices (cathode and anode components)
- Medical device screens
- Dies
- Punches
- Forming parts
- Feed fingers
- Strippers

Industries Served
Precision Process by Fathom is a preferred provider to a range of industries that require tight-tolerance, complex parts produced at a high level of quality, including:
- Medical
- Semiconductor
- Electronics
- Packaging
- Automotive
- Metal stamping
“Even when we order parts on short notice we are always very impressed with the quality and on time delivery. As always, it shows your commitment to customer service and quality of your services. I sincerely appreciate your responsiveness and the way you conduct business overall. We look forward to doing business with you for many years to come.” — Piotr Borer, Ardagh Group
High-Precision Machining
Since 1987
Established in 1987, Precision Process is a high-precision machining company located in Elk Grove, Illinois that offers integrated engineering-to-production services. Precision Process specializes in prototype, small-run to mass production of parts and components for medical, technology, automotive and metal stamping industries. Precision Process delivers complex and innovative products with high efficiency and high-quality standards while remaining cost competitive.

Service Area
Precision Process by Fathom is located in Elk Grove, Illinois but services all the following local areas and more:
Illinois // Chicago | Aurora | Naperville | Joliet | Rockford | Springfield | Elgin | Peoria | Champaign
Indiana // Gary | South Bend | Fort Wayne | Indianapolis
Wisconsin // Madison | Milwaukee | Racine | Kenosha
Iowa // Davenport | Iowa City | Cedar Rapids
“No matter how complex or how new issues are with product design, we can always count on Precision Process. Michael provides an unbiased, ‘out-of-the-box’ professional opinion that is always forward-thinking, interesting and helpful. We value Precision Process’s exemplary commitment to providing superb engineering.” — Rich Rayhill, Crown
Why Choose Precision Process by Fathom?
We have the resources and expertise to take on your toughest high-precision machining challenges for medical device components.
Finding the right supplier for your medical device components may not be a life-changing experience. But for the patients of our customers, our high-performance parts may very well make the difference between life and death. Make sure your medical device components are up to the challenge. Partner with Precision Process by Fathom.
Let us help you tackle your next challenging high-precision manufacturing project!