CNC Milling
Precision 3-, 4-, and 5-axis CNC milling for complex, multi-axis components requiring tight tolerances and repeatable accuracy across medical, aerospace, and defense applications.
From Brook Park, Ohio, Criterion Precision Machining delivers tight-tolerance CNC machining for industries where failure is not an option. Serving medical device, aerospace, defense, and photonics sectors since 1953, we combine 70+ years of precision expertise with advanced multi-axis capabilities, ISO-certified quality systems, and tolerances down to ± .0002" — because your mission-critical components deserve nothing less.

Comprehensive CNC machining solutions engineered for mission-critical industries demanding exacting tolerances and consistent quality.
Precision 3-, 4-, and 5-axis CNC milling for complex, multi-axis components requiring tight tolerances and repeatable accuracy across medical, aerospace, and defense applications.
High-precision CNC turning for cylindrical and complex geometry parts with tolerances down to ± .0002", including multi-tasking 6-axis turning with live tooling for complete part production.
Expert Swiss turning for small-diameter, tight-tolerance components as small as .010" diameter — ideal for intricate medical device parts, optical components, and high-volume production runs.
Production-intent prototyping built to the same standards as full production orders, enabling seamless transition to higher-volume manufacturing with no reprogramming or re-qualification required.
Certified quality assurance using CMM, OASIS optical inspection, and Keyence measuring systems — with free Certificates of Conformance and final inspection reports included.
At Criterion Precision Machining in Brook Park, Ohio, we serve the industries where getting it wrong isn't an option. Our ISO 13485 and ISO 9001 certified facility combines 70+ years of machining heritage with cutting-edge multi-axis equipment and rigorous quality systems. Whether you need titanium aerospace components, surgical instrument parts, or photonics housing — Ohio's demanding industrial standards meet their match in our precision-first approach.

Here's what sets Ohio's premier precision machining partner apart from the rest.
ISO 13485 and ISO 9001 certified, FDA and ITAR registered — meeting Ohio's strictest compliance standards for medical and defense sectors.
Founded in 1953 in Brook Park, Ohio, three generations of ownership have refined our precision machining craft to serve the most demanding industries.
Tolerances down to ± .0002" with multi-axis Swiss, CNC turning, and 5-axis milling capabilities for the most complex geometries and micro-features.
WBENC-certified woman-owned company bringing a people-powered culture and diverse supplier advantage to Ohio's aerospace and medical supply chains.
Experienced professionals dedicated to precision, quality, and your mission-critical success.

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.
CNC machining costs vary based on part complexity, material, tolerances, quantity, and required secondary operations. Simple parts may range from a few dollars each in high volume, while complex, tight-tolerance components in specialty materials like titanium can cost significantly more. Criterion provides detailed, transparent quotes tailored to your specific requirements — contact us with your drawings or specifications for an accurate estimate.
Talk to our precision machining experts for a free consultation and project quote.
Based in Brook Park, Ohio, Criterion delivers precision CNC machined components to mission-critical industries throughout the United States.
Brook Park, Ohio
Headquarters
Nationwide USA
Service Area
1953
In Business Since
We deliver precision machined components to customers across the United States — contact us to discuss your project.
International standard for medical device quality management systems.
Global standard for quality management and consistent customer satisfaction.
Women's Business Enterprise National Council certified woman-owned business.
Share your project specifications, drawings, or questions with our team in Brook Park, Ohio. We'll respond promptly with a detailed quote and expert guidance for your mission-critical components.
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.