Criterion Precision Machining delivers mission-critical CNC turning solutions for industries where failure isn't an option. With tolerances down to ±.0002", advanced Swiss turning capabilities, and ISO 13485 certification, we transform complex designs into flawless components. From medical devices to aerospace applications, our woman-owned, Ohio-based team combines 70+ years of precision machining expertise with cutting-edge technology to deliver parts that meet your most exacting specifications.
From micro-components to complex geometries, we deliver precision turning solutions for mission-critical applications.
Specialized Swiss turning for complex components down to .010" diameter with tolerances to ±.0002". Ideal for medical devices, aerospace, and photonics requiring intricate micro-features and exceptional surface finishes on challenging materials.
Advanced 2-axis and 6-axis multi-tasking turning centers with live tooling for complex cylindrical parts. Expertly machine titanium, stainless steels, specialty plastics, and alloys with consistent repeatability for aerospace and defense applications.
Production-intent prototyping that bridges design and manufacturing. Test fit, function, and manufacturability with the same precision and quality standards as full production runs, ensuring seamless transition to high-volume manufacturing.
Certified quality assurance with Global Advantage CMM, OASIS optical inspection, and Keyence measuring systems. Multiple inspection points throughout manufacturing ensure every component meets your specifications with comprehensive documentation included.
Complement your turning projects with 3-, 4-, and 5-axis precision milling capabilities. Create complex, multi-axis components with tight tolerances and consistent repeatability for integrated manufacturing solutions.
Complete your project with in-house secondary operations including finishing, assembly, and additional machining. Streamline your supply chain with single-source manufacturing from raw material to finished component.
For over 70 years, Criterion has been the trusted choice for industries demanding absolute precision. Our ISO 13485-certified facility in Brook Park, Ohio houses advanced Swiss turning and multi-axis CNC equipment capable of holding tolerances to ±.0002". Whether you're developing surgical instruments, aerospace components, or photonics assemblies, our expertise in complex geometries and challenging materials—from titanium to specialty plastics—ensures your most critical parts are manufactured right the first time. With comprehensive in-house inspection and production-intent prototyping, we deliver confidence at every stage.
Delivering mission-critical precision for medical device innovators, aerospace leaders, and defense contractors nationwide.
Three generations of precision engineering excellence serving America's most demanding industries.
Achieve tolerances down to ±.0002" with advanced Swiss turning and multi-axis CNC technology.
ISO 13485 and ISO 9001 certified with FDA and ITAR registration for medical device and defense compliance.
Dedicated focus on 'No Failure' industries: medical devices, aerospace, defense, and photonics applications.
Third-generation, WBENC-certified woman-owned business combining decades of Ohio manufacturing heritage with cutting-edge precision technology.
Seasoned professionals dedicated to precision manufacturing excellence.
President
As third-generation owner and President of Criterion Precision Machining, Tanya DiSalvo leads the company's strategic vision and commitment to excellence in mission-critical manufacturing. Under her leadership, Criterion has strengthened its position as a trusted partner to medical device, aerospace, defense, and photonics industries. Tanya has championed investments in advanced technology and quality systems while maintaining the company values established by her grandfather Mike Ondercin in 1953. Her dedication to precision, quality, and customer service has earned Criterion recognition as a WBENC-certified woman-owned business and positioned the company for continued growth serving industries where failure is not an option. Tanya's leadership ensures Criterion remains at the forefront of precision machining innovation while honoring its legacy of manufacturing excellence.
Estimator/Project Manager
Mike Pinchot brings extensive precision machining expertise to his role as Estimator and Project Manager at Criterion Precision Machining. With deep knowledge of CNC turning, Swiss turning, and multi-axis milling processes, Mike serves as the primary technical liaison between customers and production teams. He specializes in analyzing complex component requirements, developing accurate cost estimates, and managing projects from initial quote through final delivery. Mike's thorough understanding of tight-tolerance machining, material selection, and manufacturing capabilities enables him to guide customers through the technical and logistical aspects of precision component production. His commitment to clear communication and attention to detail ensures projects are properly scoped, efficiently scheduled, and delivered on time while meeting the exacting standards required by medical device, aerospace, defense, and photonics industries. Mike's collaborative approach helps customers optimize designs for manufacturability while maintaining the precision and quality Criterion is known for.
Quality Manager
As Quality Manager at Criterion Precision Machining, Kelly Marflak oversees the company's certified Quality Assurance program and inspection operations. Kelly is responsible for maintaining Criterion's ISO 13485 and ISO 9001 certifications while ensuring every component meets or exceeds customer specifications and industry standards. She manages the inspection department's advanced measurement systems, including the Global Advantage CMM with PC-DMIS software, OASIS Optical Automatic Smart Inspection System, and multiple Keyence measuring systems capable of measuring up to 99 dimensions simultaneously. Kelly implements and maintains quality procedures that support the medical device, aerospace, defense, and photonics industries where precision and traceability are paramount. Her expertise in quality systems, statistical process control, and FDA/ITAR compliance requirements ensures Criterion's manufacturing processes consistently deliver mission-critical components with documented accuracy and full traceability. Kelly's leadership in quality management reinforces Criterion's reputation for delivering components where failure is simply not an option.
A precision turn refers to CNC turning operations that achieve extremely tight tolerances, typically ±.0002" or better. At Criterion, precision turning involves using advanced CNC lathes and Swiss turning centers to create cylindrical components with exact dimensions, smooth surface finishes, and complex geometries. This process is essential for medical devices, aerospace parts, and other mission-critical applications where even microscopic deviations can affect performance. Our precision turning capabilities include multi-axis machining with live tooling, enabling us to produce intricate features in a single setup for maximum accuracy and repeatability.
Our precision machining experts are ready to discuss your specific tolerances, materials, and application requirements.
Medical device quality management system certification
International quality management standard certification
Women's Business Enterprise National Council certification
Share your specifications and our expert team will provide a detailed quote and technical consultation for your CNC turning needs.
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