CNC Milling
Multi-axis CNC milling for complex Inconel aerospace components. Our 3-, 4-, and 5-axis capabilities handle intricate geometries and tight tolerances critical to flight-ready parts.
Inconel's legendary toughness demands a machining partner with the tools, expertise, and zero-tolerance mindset to match. Criterion Precision Machining has been delivering mission-critical aerospace components since 1953—holding tolerances down to ±.0002" on one of the most challenging superalloys in the industry. Discover what precision-rooted experience can do for your next aerospace program.

Comprehensive precision machining capabilities engineered for Inconel superalloys in demanding aerospace applications.
Multi-axis CNC milling for complex Inconel aerospace components. Our 3-, 4-, and 5-axis capabilities handle intricate geometries and tight tolerances critical to flight-ready parts.
High-precision CNC turning for Inconel cylindrical and complex-geometry aerospace parts, delivering tolerances down to ±.0002" with excellent surface finishes on challenging superalloys.
Swiss turning for small-diameter, tight-tolerance Inconel aerospace components. Ideal for slender, high-precision parts requiring exceptional surface integrity in multi-axis operations.
Production-intent Inconel prototyping machined to full aerospace standards. Prototypes are produced on the same equipment as final parts for seamless qualification and scale-up.
Certified multi-point inspection for every Inconel aerospace part, including CMM measurement, optical OASIS system, and full documentation—Certificates of Conformance at no extra charge.
Specialized experience machining Inconel 718, 625, and related nickel-based superalloys used in turbine blades, engine casings, and structural aerospace components requiring extreme heat resistance.
Inconel superalloys resist heat and corrosion exceptionally well—but that same toughness makes them notoriously difficult to machine. Criterion's aerospace customers trust us because we combine 70+ years of precision machining experience with advanced multi-axis CNC equipment, ISO 9001-certified quality systems, and in-house CMM inspection to deliver Inconel components that meet the strictest aerospace tolerances. From turbine hardware to structural flight components, we machine Inconel the right way—every time.

See how Criterion delivers flawless Inconel components for aerospace programs where failure is never an option.
Here's what sets Criterion apart as your Inconel machining partner for aerospace-grade components.
We consistently hold tolerances down to ±.0002" on Inconel, meeting the strictest aerospace dimensional requirements.
ISO 9001 and ISO 13485 certified with ITAR and FDA registration—fully credentialed for aerospace and defense supply chains.
Founded in 1953, Criterion brings decades of superalloy machining knowledge to every aerospace Inconel program.
In-house CMM, OASIS optical inspection, and Keyence systems ensure every Inconel part ships fully verified and documented.
The precision experts behind every mission-critical Inconel aerospace component.

President
As the third-generation owner of Criterion Precision Machining, Tanya DiSalvo leads a company with over 70 years of precision machining heritage. Under her leadership, Criterion has grown into a nationally recognized, woman-owned precision machining partner for aerospace, defense, medical device, and photonics industries. Tanya has driven significant investment in advanced CNC technology, quality systems, and ITAR-compliant operations, positioning Criterion as a trusted source for Inconel and other superalloy machining challenges. Her commitment to the 'No Failure' standard permeates every level of the organization, ensuring aerospace customers receive components they can stake their programs on.

Estimator/Project Manager
Mike Pinchot serves as Estimator and Project Manager at Criterion Precision Machining, playing a pivotal role in translating aerospace customer requirements into precise, cost-effective Inconel machining solutions. With deep knowledge of superalloy machining processes, material costs, and production planning, Mike ensures that every aerospace project is accurately scoped, competitively priced, and executed on schedule. He acts as the primary liaison between customers and the shop floor, coordinating multi-axis CNC milling, turning, and inspection operations to keep complex Inconel programs moving seamlessly from quote to delivery.

Quality Manager
Kelly Marflak oversees Criterion's certified quality assurance program, ensuring every Inconel aerospace component meets or exceeds ISO 9001 and customer-specified standards. She manages a multi-layered inspection process that includes CMM measurement with PC-DMIS software, the OASIS optical inspection system, and Keyence dimensional measurement systems. Kelly's rigorous quality culture ensures that Certificates of Conformance and final inspection reports are delivered with every shipment—at no extra charge—giving aerospace customers the documentation confidence their programs demand.

Chief Financial Officer
David Glass serves as Chief Financial Officer at Criterion Precision Machining, overseeing the financial operations and strategic investments that allow the company to maintain cutting-edge CNC equipment and quality systems for aerospace Inconel machining. His financial stewardship has supported Criterion's ongoing evolution from a general machine shop into a specialized precision machining partner for mission-critical industries. David's work ensures the company remains financially sound and positioned to invest in the technology upgrades aerospace customers require for complex superalloy programs.
What is the best coating for cutting Inconel?
TiAlN (Titanium Aluminum Nitride) and AlTiN (Aluminum Titanium Nitride) coatings are widely considered the best choices for cutting Inconel. These coatings provide exceptional heat resistance and hardness at elevated temperatures—critical given Inconel's poor thermal conductivity—reducing tool wear and extending tool life significantly during high-speed machining operations.
What is the best CNC grinding wheel to use to machine Inconel?
What is the machinability of Inconel 718?
What tolerances can Criterion achieve on Inconel aerospace parts?
Which Inconel alloys does Criterion machine for aerospace applications?
Is Criterion ITAR registered for aerospace Inconel machining?
Does Criterion offer Inconel prototyping before full production runs?
What inspection documentation is provided with Inconel aerospace parts?
Talk to our engineering team for a free technical consultation on your aerospace Inconel project.
Criterion ships precision Inconel aerospace components to customers across the United States from our Brook Park, Ohio facility.
Nationwide U.S.
Service Area
Brook Park, Ohio
Headquarters
Since 1953
In Business
Contact us to discuss your Inconel machining needs—we ship precision components nationwide.
Quality management system certified to global aerospace and industrial standards.
Medical device quality management system certification demonstrating precision compliance.
Nationally recognized woman-owned business certification by WBENC.
Share your part drawings, material specs, and tolerance requirements with our team. We'll respond with a detailed quote and engineering feedback—typically within one business day.
For immediate assistance, feel free to give us a direct call at 216-267-1733 You can also send us a quick email at office@criteriontool.com
For immediate assistance, feel free to give us a direct call at 216-267-1733 You can also send us a quick email at office@criteriontool.com