Criterion Precision Machining delivers mission-critical components with tolerances down to ± .0002" for industries where failure is not an option. As a woman-owned, ISO 13485 and ISO 9001 certified manufacturer, we specialize in Swiss turning, CNC milling, and complex geometries for medical devices, aerospace, defense, and photonics applications. From prototype to production, our advanced machining centers and certified quality systems ensure consistent excellence in every component we produce.
Our Precision Machining Services
From micro-components to complex multi-axis parts, we deliver uncompromising precision for mission-critical applications.
Swiss Turning
Specialized Swiss turning for complex, small-diameter components with tolerances down to ± .0002". Our 5-, 6-, and 8-axis Swiss screw machines excel at intricate micro-parts for medical devices, aerospace, and photonics applications requiring exceptional surface finishes.
High-precision CNC turning for cylindrical and complex geometry parts using 2-axis and 6-axis multi-tasking centers with live tooling. We specialize in tight-tolerance turned components from challenging materials including titanium, stainless steels, and specialty plastics.
Production-intent prototyping that bridges design and full manufacturing. We produce prototype runs with the same precision, quality standards, and equipment as final production, enabling seamless transition to volume manufacturing without reprogramming.
Comprehensive quality assurance featuring Global Advantage CMM, OASIS optical inspection systems, and multiple Keyence measuring systems. Our certified QA program includes Certificates of Conformance and detailed final inspection reports at no additional charge.
Complete in-house secondary operations to deliver finished components ready for your assembly line. Our integrated approach eliminates vendor coordination and ensures consistent quality control throughout the entire manufacturing process.
Precision Machining for Industries Where Failure Is Not an Option
Since 1953, Criterion has evolved from a general machine shop into a specialized precision manufacturing partner for the world's most demanding industries. Our ISO 13485 and ISO 9001 certified facility combines advanced Swiss turning, multi-axis CNC capabilities, and certified quality systems to deliver components with tolerances down to ± .0002". We specialize in complex geometries, micro-features, and challenging materials—titanium, stainless steels, PEEK, and specialty alloys. With ProShop ERP integration and multiple points of precision inspection including Global Advantage CMM, we ensure every component meets exacting specifications for medical devices, aerospace, defense, and photonics applications.
The Criterion Difference
Why Choose Criterion Precision Machining?
Third-generation expertise meets cutting-edge technology for uncompromising precision.
Woman-Owned Excellence
WBENC-certified woman-owned business with third-generation leadership, combining legacy craftsmanship with innovative manufacturing solutions.
Certified Quality
ISO 13485 and ISO 9001 certified with FDA and ITAR registration, ensuring compliance for medical device and defense applications with documented traceability.
Extreme Tolerances
Achieve tolerances down to ± .0002" with advanced Swiss turning and multi-axis CNC capabilities, backed by comprehensive CMM and optical inspection systems.
No-Failure Specialization
Dedicated expertise in medical device, aerospace, defense, and photonics industries where component failure is unacceptable and precision is paramount.
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.
Kelly Marflak
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.
Mike Pinchot
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.
David Glass
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.
Kellyanne Gottschalk
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.
Nilda Feliciano
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.
Bonnie Paletta
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.
Frequently Asked Questions
Do CNC machinists make a lot of money?
Yes, skilled CNC machinists, particularly those specializing in precision work with tight tolerances like Swiss turning and multi-axis milling, command competitive salaries. Machinists working in high-precision industries such as medical device, aerospace, and defense manufacturing—where tolerances down to ± .0002" are required—typically earn above-average wages due to the specialized skills and quality standards involved.
Does machining have a future?
Absolutely. Precision machining remains essential for mission-critical industries including medical devices, aerospace, defense, and advanced photonics. While automation continues advancing, the need for skilled machinists who can program, operate, and optimize complex multi-axis equipment for tight-tolerance work is stronger than ever. Industries requiring components with extreme precision and zero-failure performance will always need expert precision manufacturing.
What tolerances can you achieve in precision machining?
At Criterion, we routinely achieve tolerances down to ± .0002" across Swiss turning, CNC turning, and multi-axis milling operations. Our advanced equipment, combined with multiple inspection points using CMM, optical systems, and precision measurement tools, ensures consistent dimensional accuracy for mission-critical components in medical, aerospace, and defense applications.
What materials can you machine?
We specialize in challenging materials including titanium alloys, stainless steels (300 and 400 series), aluminum, PEEK and specialty plastics, and various exotic alloys. Our expertise with difficult-to-machine materials makes us a trusted partner for aerospace, medical device, and defense components requiring both precision and material performance.
Are you ISO certified?
Yes, Criterion Precision Machining is ISO 13485 certified for medical device manufacturing and ISO 9001 certified for quality management systems. We are also FDA registered and ITAR registered, ensuring full compliance for regulated medical and defense applications with complete documentation and traceability.
Do you offer prototyping services?
Yes, we specialize in production-intent prototyping using the same equipment, quality standards, and inspection processes as full production runs. This approach provides meaningful performance data and enables seamless transition to volume manufacturing without reprogramming or requalification, saving time and ensuring consistency.
What is your typical lead time?
Lead times vary based on part complexity, material availability, and volume requirements. For prototype runs and first articles, we work efficiently to support your development timeline. For production orders, we provide accurate scheduling based on current capacity. Contact our estimating team for specific project timelines.
What industries do you serve?
We specialize in mission-critical industries where component failure is not an option: medical devices (surgical instruments, implantable components, diagnostic equipment), aerospace (lightweight structural components, precision fittings), defense and weapons systems, and photonics/optics (lens housings, mounts, optical assemblies). These 'No Failure' sectors demand the extreme precision and documented quality we provide.
Have More Questions About Our Capabilities?
Our estimating and engineering team is ready to discuss your precision machining requirements and technical specifications.
Certified & Trusted
Awards and Recognition
ISO 13485 Certified
Medical device quality management system certification
ISO 9001 Certified
International quality management system standard
WBENC Certified
Woman-owned business enterprise national certification
Ready to Discuss Your Precision Machining Project?
Share your technical requirements, drawings, or specifications. Our estimating team will provide a detailed quote and manufacturing recommendations for your mission-critical components.