Expert Precision Machining Services for Quality Parts On Time

Trust Criterion Precision Machining for mission-critical components with tolerances down to ±.0002". Our ISO-certified facility delivers Swiss turning, CNC milling, and turning solutions for medical device, aerospace, defense, and photonics industries where failure is not an option.

Precision machined metal components on CNC machine

Our Precision Machining Services

Comprehensive machining solutions from prototyping to production for mission-critical components.

Swiss Turning

Complex components with tight tolerances, ideal for small-diameter, high-volume production down to .010" diameter with ±.0002" tolerance.

CNC Milling

Precision 3-, 4-, and 5-axis milling for complex, multi-axis components with tight tolerances and consistent repeatability.

CNC Turning

High-precision turning for cylindrical and complex geometry parts, delivering tight tolerances down to ±.0002" and smooth surface finishes.

Prototyping

Production-intent prototyping with same precision and quality standards as full production runs for testing fit, function, and manufacturability.

Quality Inspection

Certified quality assurance with Global Advantage CMM, OASIS optical inspection system, and comprehensive documentation including certificates of conformance.

Material Expertise

Skilled machining of titanium, stainless steels, aluminum, PEEK, specialty plastics, and advanced alloys for demanding applications.

ISO Certified Excellence

Mission-Critical Precision for No-Failure Industries

Since 1953, Criterion Precision Machining has specialized in delivering precision-machined components where failure is not an option. Our woman-owned, ISO 13485 and ISO 9001 certified facility combines advanced Swiss turning, multi-axis CNC milling, and precision turning capabilities to produce components with tolerances down to ±.0002" for medical device, aerospace, defense, and photonics industries.

Advanced CNC Swiss turning machine producing micro-precision components
Proven Track Record

Trusted by Industry Leaders

Delivering precision components for leading companies across mission-critical industries.

"Criterion's Swiss Turning capabilities are exceptional. We've been sourcing medical device components for five years—their precision and reliability are unmatched in the industry."

Dr. Sarah Chen

"We had a critical aerospace component failing tolerance specs at our previous vendor. Criterion diagnosed the issue, retooled in days, and delivered parts to ±.0002" consistently."

James Patterson

"When evaluating precision machining companies, Criterion stands out. Their ProShop ERP integration and ISO certifications give us confidence in supply chain continuity."

Michael Torres

"Our prototype deadline was tight. Criterion's production-intent prototyping delivered test samples within two weeks using the same equipment as final production."

Rebecca Hoffmann

"The Quality Inspection service with Global Advantage CMM and PC-DMIS documentation saved us time and cost. No charge for Certificates of Conformance impressed our compliance team."

Thomas Whitley

"Twenty-three years as Criterion's partner. Their 5-Axis CNC Milling and material expertise—titanium, PEEK, specialty alloys—have never let us down on mission-critical builds."

Harold Greenspan

"Their CNC Turning for our photonics lens mounts achieved ±.0002" tolerances first article, every time. Woman-owned, responsive, and genuinely invested in our success."

Lisa Wu

"As precision machining companies scale, few maintain Criterion's quality standards. Their ISO 13485 and ITAR registration mean our aerospace projects move forward without delays."

Captain Robert Dalton

"Criterion's Swiss Turning capabilities are exceptional. We've been sourcing medical device components for five years—their precision and reliability are unmatched in the industry."

Dr. Sarah Chen

"We had a critical aerospace component failing tolerance specs at our previous vendor. Criterion diagnosed the issue, retooled in days, and delivered parts to ±.0002" consistently."

James Patterson

"When evaluating precision machining companies, Criterion stands out. Their ProShop ERP integration and ISO certifications give us confidence in supply chain continuity."

Michael Torres

"Our prototype deadline was tight. Criterion's production-intent prototyping delivered test samples within two weeks using the same equipment as final production."

Rebecca Hoffmann

"The Quality Inspection service with Global Advantage CMM and PC-DMIS documentation saved us time and cost. No charge for Certificates of Conformance impressed our compliance team."

Thomas Whitley

"Twenty-three years as Criterion's partner. Their 5-Axis CNC Milling and material expertise—titanium, PEEK, specialty alloys—have never let us down on mission-critical builds."

Harold Greenspan

"Their CNC Turning for our photonics lens mounts achieved ±.0002" tolerances first article, every time. Woman-owned, responsive, and genuinely invested in our success."

Lisa Wu

"As precision machining companies scale, few maintain Criterion's quality standards. Their ISO 13485 and ITAR registration mean our aerospace projects move forward without delays."

Captain Robert Dalton

"Criterion's Swiss Turning capabilities are exceptional. We've been sourcing medical device components for five years—their precision and reliability are unmatched in the industry."

Dr. Sarah Chen

"We had a critical aerospace component failing tolerance specs at our previous vendor. Criterion diagnosed the issue, retooled in days, and delivered parts to ±.0002" consistently."

James Patterson

"When evaluating precision machining companies, Criterion stands out. Their ProShop ERP integration and ISO certifications give us confidence in supply chain continuity."

Michael Torres

"Our prototype deadline was tight. Criterion's production-intent prototyping delivered test samples within two weeks using the same equipment as final production."

Rebecca Hoffmann

"The Quality Inspection service with Global Advantage CMM and PC-DMIS documentation saved us time and cost. No charge for Certificates of Conformance impressed our compliance team."

Thomas Whitley

"Twenty-three years as Criterion's partner. Their 5-Axis CNC Milling and material expertise—titanium, PEEK, specialty alloys—have never let us down on mission-critical builds."

Harold Greenspan

"Their CNC Turning for our photonics lens mounts achieved ±.0002" tolerances first article, every time. Woman-owned, responsive, and genuinely invested in our success."

Lisa Wu

"As precision machining companies scale, few maintain Criterion's quality standards. Their ISO 13485 and ITAR registration mean our aerospace projects move forward without delays."

Captain Robert Dalton
The Criterion Difference

Why Choose Criterion Precision Machining?

Three generations of precision machining excellence serving industries where failure is not an option.

Precision

Tight tolerances down to ±.0002" with advanced Swiss turning and multi-axis capabilities.

Certified

ISO 13485 and ISO 9001 certified with FDA and ITAR registration for regulated industries.

Experience

Over 70 years of machining expertise specializing in medical, aerospace, defense, and photonics sectors.

Quality

Comprehensive inspection with Global Advantage CMM and OASIS optical measurement systems ensuring consistent quality.

Meet Our Expert Team

Experienced professionals dedicated to precision machining excellence.

Tanya DiSalvo, President of Criterion Precision Machining

Tanya DiSalvo

President

As the third-generation owner of Criterion Precision Machining, Tanya DiSalvo leads a woman-owned business that has evolved from a general machine shop founded in 1953 into a specialized precision machining company. Under her leadership, Criterion has become a trusted partner for mission-critical industries including medical device, aerospace, defense, and photonics. Tanya has guided the company's investment in advanced technology including Swiss turning centers, multi-axis CNC equipment, and comprehensive quality systems. Her commitment to excellence has positioned Criterion as a leader in producing components with tolerances down to ±.0002" for industries where failure is not an option. She maintains the company's ISO 13485 and ISO 9001 certifications while fostering a culture of precision and reliability that serves clients across the United States.

Mike Pinchot, Estimator/Project Manager at Criterion Precision Machining

Mike Pinchot

Estimator/Project Manager

Mike Pinchot brings extensive expertise in precision machining project management and estimation to Criterion Precision Machining. As both Estimator and Project Manager, Mike plays a crucial role in translating customer requirements into actionable manufacturing plans while ensuring projects meet the exacting standards required for medical device, aerospace, defense, and photonics applications. His deep understanding of Swiss turning, CNC milling, and precision turning capabilities enables him to provide accurate assessments of complex machining projects. Mike works closely with customers from initial design review through final delivery, coordinating with quality assurance, production teams, and inspection departments to ensure components meet tolerances down to ±.0002". His attention to detail and commitment to on-time delivery makes him an invaluable resource for customers requiring mission-critical components where precision and reliability are paramount.

Kelly Marflak, Quality Manager at Criterion Precision Machining

Kelly Marflak

Quality Manager

Kelly Marflak oversees Criterion Precision Machining's comprehensive quality assurance program, ensuring every component meets the exacting standards required for mission-critical industries. As Quality Manager, Kelly manages the company's ISO 13485 and ISO 9001 certification programs while maintaining FDA and ITAR compliance standards. She oversees advanced inspection capabilities including the Global Advantage 5x5x5mm CMM with TESTASTAR-sm probe using PC-DMIS software, and the OASIS Optical Automatic Smart Inspection System that can measure multiple dimensions simultaneously. Kelly's expertise extends to coordinating with Keyence measuring systems that can evaluate up to 99 dimensions on up to 100 parts concurrently. Her meticulous attention to detail and commitment to continuous improvement ensures that Criterion's precision machined components consistently meet tolerances down to ±.0002" for medical device, aerospace, defense, and photonics applications where failure is not an option.

Frequently Asked Questions

What tolerances can Criterion Precision Machining achieve?

We specialize in tight tolerances down to ±.0002" using our advanced Swiss turning, CNC milling, and turning capabilities with comprehensive quality inspection systems.

What industries does Criterion serve?

What certifications does Criterion hold?

What materials can you machine?

Do you offer prototyping services?

What inspection capabilities do you have?

How long has Criterion been in business?

What is your minimum order quantity?

Ready to Discuss Your Project?

Our precision machining experts are ready to help with your mission-critical components.

Certified & Trusted

Awards and Recognition

ISO 13485 certification logo

ISO 13485 Certified

Medical device quality management system

ISO 9001 certification logo

ISO 9001 Certified

Quality management system standard

WBENC certification logo

WBENC Certified

Woman-owned business enterprise

Get Your Precision Machining Quote Today

Contact our team to discuss your project requirements and receive a detailed quote for your precision machined components.

Contact Us Today

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