CNC Milling
Precision 3-, 4-, and 5-axis CNC milling for complex, multi-axis components with tight tolerances and consistent repeatability across critical industries.
Michigan's advanced manufacturing sector demands absolute precision—and Criterion Precision Machining delivers it. From Swiss turning and multi-axis CNC milling to rigorous quality inspection, we serve medical device, aerospace, defense, and photonics industries with tolerances down to ±.0002". Trusted since 1953, we're built for the work where failure is simply not an option.

From multi-axis milling to Swiss turning and certified quality inspection, we offer a full suite of precision machining capabilities.
Precision 3-, 4-, and 5-axis CNC milling for complex, multi-axis components with tight tolerances and consistent repeatability across critical industries.
High-precision CNC turning for cylindrical and complex geometry parts, achieving tolerances down to ±.0002" with smooth surface finishes for demanding applications.
Specialized Swiss turning for small-diameter, high-volume components with micro-sized features, ideal for medical, aerospace, defense, and photonics applications.
Production-intent prototyping built to the same precision and compliance standards as full production orders, enabling seamless transition to high-volume manufacturing.
Certified quality assurance with CMM, OASIS optical inspection, and Keyence systems measuring up to 99 dimensions simultaneously—no charge for conformance documentation.
Michigan's robust manufacturing ecosystem—from automotive supply chains to emerging medical device and defense contractors—demands suppliers who hold zero tolerance for error. Criterion Precision Machining brings over 70 years of expertise to every order, delivering tight tolerances down to ±.0002", complex geometries in titanium and specialty alloys, and ISO 9001 and ISO 13485 certified processes. Whether you need Swiss-turned micro-components or 5-axis milled assemblies, our team is equipped to meet your most exacting specifications.

We combine seven decades of machining heritage with advanced technology and certified quality systems to deliver components that perform when it matters most.
ISO 9001 and ISO 13485 certified processes ensure every component meets the strictest industry and regulatory standards.
Founded in 1953, our decades of precision machining experience serve Michigan and national manufacturers across the most demanding sectors.
5-axis CNC milling, multi-axis Swiss turning, and CMM inspection technology deliver tolerances down to ±.0002" for complex parts.
WBENC-certified, woman-owned company committed to diversity, integrity, and long-term partnerships with Michigan-area manufacturers and beyond.
Experienced professionals dedicated to precision, quality, and your 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.
Criterion specializes in precision machining for mission-critical industries including medical device, aerospace, defense, and photonics and optics—sectors where failure is not an option.
Our team is ready to discuss your project requirements and provide expert guidance.
Internationally recognized quality management system certification.
Medical device quality management system certification for critical compliance.
Women's Business Enterprise National Council certified woman-owned business.
Share your project specifications and a Criterion expert will respond promptly with a tailored quote. We handle complex geometries, tight tolerances, and mission-critical 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.