CNC Milling
Precision 3-, 4-, and 5-axis CNC milling for complex, multi-axis components with tight tolerances and consistent repeatability across every production run.
Criterion Precision Machining delivers mission-critical CNC machining services to manufacturers across Tennessee, holding tolerances down to ±.0002" for medical device, aerospace, defense, and photonics applications. From Swiss turning and CNC milling to precision inspection, we bring over 70 years of trusted manufacturing expertise to every component we produce.

Comprehensive precision machining solutions for Tennessee manufacturers in medical, aerospace, defense, and photonics industries.
Precision 3-, 4-, and 5-axis CNC milling for complex, multi-axis components with tight tolerances and consistent repeatability across every production run.
High-precision CNC turning for cylindrical and complex geometry parts, achieving tolerances down to ±.0002" with smooth, consistent surface finishes.
Specialized Swiss turning for small-diameter, intricate components with micro-sized features, ideal for high-volume production in medical and aerospace applications.
Production-intent prototyping built to the same precision and compliance standards as full production orders, enabling seamless transition to higher-volume manufacturing.
Certified quality assurance with CMM inspection, OASIS optical measurement, and Keyence systems — plus complimentary Certificates of Conformance and final inspection reports.
Tennessee's advanced manufacturing sector — from medical device OEMs to aerospace suppliers — demands machining partners that never compromise on accuracy. Criterion Precision Machining delivers tolerances as tight as ±.0002", multi-axis milling, Swiss turning, and ISO 13485/9001-certified quality systems to ensure every component meets the exacting standards your application requires. With over 70 years of precision machining heritage, we are built to perform when failure is simply not an option.

We combine seven decades of precision machining expertise with advanced technology and certified quality systems to deliver components Tennessee manufacturers can depend on.
We hold tolerances down to ±.0002", meeting the strictest demands of medical device and aerospace manufacturers across Tennessee and the U.S.
ISO 13485 and ISO 9001 certified with FDA and ITAR registration, ensuring full compliance with the regulatory standards your industry requires.
Founded in 1953 and now in its third generation of ownership, Criterion brings unmatched precision machining legacy to every Tennessee project.
A WBENC-certified, woman-owned enterprise led by President Tanya DiSalvo, delivering people-powered precision for mission-critical industries nationwide.
Experienced professionals dedicated to precision, quality, and mission-critical results.

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 cost per hour is calculated by adding machine operating costs (depreciation, maintenance, utilities), labor costs, overhead, and tooling expenses, then dividing by productive hours. Rates typically range from $50 to $200+ per hour depending on machine type, complexity, and material. For an accurate quote tailored to your Tennessee project, contact Criterion directly.
Speak with our team for expert guidance and a free, no-obligation project quote.
Criterion ships precision-machined components to manufacturers across Tennessee and throughout the entire United States.
Nationwide
Service Coverage
Mon–Fri
Availability
70+ Years
Years Serving
We deliver precision-machined components to manufacturers across Tennessee and the entire U.S.
International standard for medical device quality management systems.
Globally recognized quality management system certification.
Women's Business Enterprise National Council certified woman-owned business.
Share your project requirements and one of our experienced estimators will provide a detailed, no-obligation quote. We specialize in tight-tolerance components for medical, aerospace, defense, and photonics applications.
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.