CNC Prototyping
Prototype runs are produced on production machine cells and inspected with production metrology, helping qualified parts move into higher-volume manufacturing without reprogramming or unnecessary requalification.
Build confidence in your next critical component with production-intent CNC prototype parts manufactured to the same standards used for final production. Criterion Precision Machining supports engineers with tight-tolerance milling, turning, Swiss machining, EDM, inspection, and traceability for medical, aerospace, defense, and photonics programs where prototype performance must translate directly into repeatable, manufacturable parts without requalification risk.

Production-intent prototype machining, turning, EDM, inspection, and finishing support for regulated, mission-critical parts from concept through production.
Prototype runs are produced on production machine cells and inspected with production metrology, helping qualified parts move into higher-volume manufacturing without reprogramming or unnecessary requalification.
Advanced 3-, 4-, and 5-axis milling supports complex geometries, tight pockets, fine features, and challenging materials for medical, aerospace, defense, and photonics components.
Multi-axis CNC turning with live tooling produces cylindrical and complex-geometry parts with smooth finishes, tight tolerances, and reduced tolerance stack-up from fewer setups.
Swiss turning supports small-diameter, high-repeatability components with micro-features, deep cuts, and diameters as small as .010 inches for demanding precision applications.
Integrated inspection includes CMM, OASIS optical measurement, Keyence systems, First Article Inspection, final reports, Certificates of Conformance, and material traceability documentation.
Wire EDM produces burr-free profiles, sharp internal corners, narrow slots, intricate contours, and thin-wall features in hardened steels, titanium, stainless, and specialty alloys.

Our team reviews drawings, tolerances, materials, regulatory needs, and expected production volumes to confirm feasibility. This early engineering review helps identify machining risks, inspection requirements, and documentation needs before prototype manufacturing begins.
Choose a prototype manufacturing partner built for precision, traceability, and production readiness.
Prototype parts are built for qualification, manufacturability, and smooth transition into production.
ISO 13485 and ISO 9001 systems support regulated, documentation-heavy manufacturing programs.
Tight tolerances down to ±0.0002 inches support complex, mission-critical component requirements.
In-house machining, EDM, laser marking, finishing, and inspection reduce vendor handoff risk.
Experienced manufacturing leaders supporting no-failure industries.

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.
Precision parts manufacturing is the controlled production of components with very tight dimensional, geometric, and surface requirements. At Criterion Precision Machining, this includes CNC milling, CNC turning, Swiss turning, Wire EDM, in-process inspection, final inspection, and traceability documentation for regulated industries where small tolerance deviations can affect performance, safety, or compliance.
Send your drawings and requirements for expert review.
Medical device quality management certification.
Certified quality management system standard.
Recognized woman-owned business enterprise membership.
Share your drawings, tolerances, materials, and production goals. Our team will review requirements and help determine the right prototype-to-production path.
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.