CNC Milling
Precision multi-axis CNC milling for complex aerospace components. Our 3-, 4-, and 5-axis capabilities deliver tight tolerances and consistent repeatability for structural and system-critical parts.
When aerospace components demand zero tolerance for failure, Criterion Precision Machining delivers. With decades of precision machining expertise, AS9100D-compliant processes, and advanced multi-axis capabilities, we produce mission-critical aerospace parts—from lightweight structural components to complex defense system hardware—with tolerances down to ±.0002". Trusted by leading aerospace and defense manufacturers across the United States.

End-to-end precision machining solutions engineered for aerospace and defense applications demanding absolute accuracy and compliance.
Precision multi-axis CNC milling for complex aerospace components. Our 3-, 4-, and 5-axis capabilities deliver tight tolerances and consistent repeatability for structural and system-critical parts.
High-precision CNC turning for cylindrical and complex geometry aerospace parts. We hold tolerances to ±.0002" across titanium, stainless steels, and high-performance alloys critical to aerospace applications.
Swiss turning expertise for small-diameter, intricate aerospace components with micro-sized features. Ideal for slender, high-precision parts requiring exceptional surface finishes and tight tolerances.
Production-intent aerospace prototyping machined to the same standards as full production orders. Seamlessly transition from approved prototype to high-volume runs with no reprogramming required.
Certified quality inspection using CMM, OASIS optical systems, and Keyence measuring tools. Full documentation including Certificates of Conformance and final inspection reports included at no charge.
Skilled machining of aerospace-grade materials including titanium, stainless steels, aluminum, specialty plastics, and high-performance alloys—meeting the demanding requirements of aerospace and defense programs.
Aerospace components leave no room for compromise. At Criterion Precision Machining, our AS9100D-compliant processes ensure every part machined for aerospace and defense applications meets the most stringent industry standards. From lightweight aircraft structural components to precision defense system hardware, we leverage advanced 5-axis CNC milling, multi-axis Swiss turning, and certified inspection systems to deliver parts that perform flawlessly. Serving aerospace manufacturers across the United States from our Brook Park, Ohio facility, we bring over 70 years of machining legacy to every order.

We bring decades of proven precision machining expertise, rigorous quality systems, and a commitment to zero-failure performance to every aerospace program.
Our quality management systems meet AS9100D, ISO 9001, and ISO 13485 standards—ensuring full aerospace and defense regulatory compliance.
We consistently hold tolerances down to ±.0002" on complex aerospace geometries across titanium, stainless steel, and specialty alloys.
Founded in 1953, Criterion has served U.S. aerospace and defense manufacturers for over seven decades from our Ohio facility.
Our Global Advantage CMM, OASIS optical inspection, and Keyence systems deliver documented, traceable quality on every aerospace part shipped.
Experienced professionals dedicated to precision, quality, and aerospace excellence.

President
As third-generation owner and President of Criterion Precision Machining, Tanya DiSalvo leads our commitment to delivering mission-critical components for Texas railroad infrastructure. Under her leadership, Criterion has evolved into a woman-owned precision machining company specializing in the 'No Failure' sectors, including railroad safety systems. Tanya's vision has guided the company's investment in advanced CNC technology and ISO certification programs, ensuring our Texas railroad clients receive components that meet the most stringent safety and performance standards. Her dedication to quality excellence and operational efficiency has positioned Criterion as a trusted partner for railroad manufacturers requiring precision components that perform reliably across Texas's diverse operating environments, from Gulf Coast humidity to West Texas desert conditions.

Quality Manager
Kelly Marflak serves as Quality Manager at Criterion Precision Machining, overseeing our comprehensive quality assurance programs critical to railroad component manufacturing. With deep expertise in precision inspection protocols, Kelly manages our certified Quality Assurance program that includes multiple points of precision inspection built into manufacturing processes. She oversees the operation of our Global Advantage CMM with PC-DMIS software, OASIS Optical Automatic Smart Inspection System, and Keyence measuring systems capable of measuring up to 99 dimensions simultaneously. Kelly's meticulous attention to detail ensures every railroad component meets the exacting tolerances and safety standards required for Texas railroad applications. Her leadership in quality control processes has been instrumental in maintaining our ISO 13485 and ISO 9001 certifications, providing railroad manufacturers with the documentation and compliance verification essential for safety-critical components operating across Texas's extensive rail network.

Estimator/Project Manager
Mike Pinchot brings extensive project management expertise to Criterion's railroad machining operations as Estimator and Project Manager. With deep understanding of precision manufacturing requirements, Mike works closely with Texas railroad clients to develop accurate project estimates and manage complex machining programs from concept through delivery. His technical expertise enables him to assess challenging railroad component specifications and coordinate multi-axis machining operations, Swiss turning processes, and quality inspection requirements. Mike's project management approach ensures railroad components are delivered on time and within budget while meeting the stringent quality standards required for safety-critical applications. His collaborative work with engineering teams and manufacturing personnel has streamlined processes for producing complex railroad parts, from prototype development through full production runs, ensuring Texas railroad infrastructure receives components manufactured to the highest precision standards.

Chief Financial Officer
David Glass serves as Chief Financial Officer at Criterion Precision Machining, bringing strategic financial leadership to support our continued growth and investment in advanced manufacturing capabilities. With his comprehensive understanding of manufacturing economics and operational efficiency, David ensures that our precision machining operations remain competitive while maintaining the highest quality standards. His financial expertise enables Criterion to make strategic investments in cutting-edge CNC equipment, quality systems, and workforce development that directly benefit our clients in mission-critical industries. David's analytical approach to business management helps optimize our manufacturing processes and resource allocation, ensuring we can deliver exceptional value to customers while maintaining the financial stability necessary for long-term partnerships. His commitment to operational excellence supports our ability to serve the demanding requirements of medical device, aerospace, defense, and photonics manufacturers who rely on our precision machining capabilities.

Internal Systems Manager
Kellyanne Gottschalk serves as Internal Systems Manager at Criterion Precision Machining, responsible for managing and optimizing the company's operational and business systems, including the ProShop ERP platform. Her role is critical in ensuring seamless workflow from order intake to final delivery, enabling real-time visibility into production scheduling, quality documentation, and compliance tracking. Kellyanne's expertise in systems management supports Criterion's ability to scale efficiently while maintaining the rigorous documentation and traceability standards required by regulated industries such as medical devices and aerospace. Her work underpins the company's operational excellence and helps ensure every project is delivered on time and in full compliance.

Customer Service
Nilda Feliciano is the Customer Service representative at Criterion Precision Machining, serving as a dedicated point of contact for clients throughout the entire order lifecycle. From initial inquiries to order updates and delivery coordination, Nilda ensures that every client receives responsive, clear, and professional communication. Her commitment to customer satisfaction reflects Criterion's values of reliability and partnership, particularly important for clients in time-sensitive industries like aerospace, defense, and medical devices. Nilda's friendly and knowledgeable approach helps build lasting relationships with customers, ensuring they feel supported and informed at every stage of their project with Criterion.

Office Administrator
Bonnie Paletta serves as Office Administrator at Criterion Precision Machining, keeping the day-to-day operations of the business running smoothly. Her organizational skills and attention to detail ensure that administrative processes, documentation, and internal coordination are handled efficiently, freeing up the production and quality teams to focus on delivering precision components. Bonnie is a vital part of the Criterion team, contributing to the company's culture of professionalism and reliability. Her support role touches every department, helping to maintain the high standards of communication and organization that Criterion's clients in medical device, aerospace, and defense industries depend on.
AS9100D is the internationally recognized quality management system standard for the aviation, space, and defense industries. It builds upon ISO 9001 and adds additional requirements specific to aerospace, such as risk management, configuration control, and first article inspection, ensuring suppliers consistently meet the rigorous quality and safety demands of aerospace programs.
Our aerospace machining experts are ready to discuss your project requirements and quality needs.
Criterion Precision Machining delivers AS9100D-compliant aerospace components to manufacturers and programs across the entire United States.
Nationwide U.S.
Service Area
Brook Park, Ohio
Headquarters
Since 1953
In Business
Contact us to discuss your specifications, tolerances, and program requirements with our team.
Internationally recognized quality management system certification.
Medical device quality management system certification.
Women's Business Enterprise National Council certified supplier.
Share your part drawings, tolerances, and material requirements with our team. We'll respond promptly with a competitive quote and confirm our ability to meet your AS9100D compliance and schedule requirements.
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.