Precision CNC Machine Shop for Custom Part Production

Criterion Precision Machining delivers mission-critical components with tolerances down to ±.0002" for industries where failure is not an option. Our ISO 13485 and ISO 9001 certified facility combines advanced Swiss turning, multi-axis CNC milling, and precision turning capabilities with decades of expertise in medical devices, aerospace, defense, and photonics. From prototype to production, we machine complex geometries in challenging materials including titanium, stainless steels, and specialty alloys.

Precision CNC machining operations producing custom metal parts

Our Precision CNC Machining Services

From Swiss turning to multi-axis milling, we deliver tight-tolerance components for mission-critical applications across medical, aerospace, and defense industries.

Swiss Turning

Advanced Swiss turning for complex, small-diameter components with tolerances to ±.0002". Ideal for high-volume production of intricate parts with exceptional surface finishes in challenging materials. Capabilities include 5-, 6-, and 8-axis Swiss screw machines with live tooling for micro-features and deep cuts.

CNC Turning

High-precision 2-axis and 6-axis multi-tasking CNC turning centers for cylindrical and complex geometry components. We specialize in tight-tolerance turned parts from micro to medium sizes, with expertise in titanium, stainless steels, and specialty alloys for critical applications.

CNC Milling

Precision 3-, 4-, and 5-axis CNC milling for intricate, multi-axis components requiring exceptional accuracy. Our advanced milling capabilities deliver consistent repeatability for complex parts in medical devices, aerospace, and photonics applications where precision is non-negotiable.

Prototyping

Production-intent prototyping using the same machines and inspection standards as full production runs. Our prototype services bridge design and manufacturing, providing meaningful performance data and real-world insights. Minimum quantities ensure consistent quality and seamless transition to high-volume production.

Quality Inspection

Certified Quality Assurance program with multiple precision inspection points including Global Advantage CMM with PC-DMIS software, OASIS optical inspection system, and Keyence measuring systems. We provide comprehensive documentation including Certificates of Conformance and detailed inspection reports at no additional charge.

Custom Part Production

End-to-end custom machining solutions for mission-critical components in medical device, aerospace, defense, and photonics industries. We handle complex geometries, challenging materials, and tight tolerances with in-house secondary operations and comprehensive quality control throughout the manufacturing process.

Tolerance to ±.0002"

Mission-Critical Precision for Industries Where Failure Is Not an Option

For over 70 years, Criterion Precision Machining has been the trusted partner for manufacturers who demand absolute accuracy. Our ISO 13485 and ISO 9001 certified facility combines state-of-the-art Swiss turning, multi-axis CNC milling, and advanced quality inspection systems to produce components that meet the exacting standards of medical device, aerospace, defense, and photonics industries. We specialize in complex geometries, micro-features, and challenging materials, delivering consistent quality from prototype through high-volume production with tolerances as tight as ±.0002".

ISO-certified CNC machine shop with advanced inspection equipment
Proven Performance

Trusted by Industry Leaders

Delivering precision components for medical device innovators, aerospace manufacturers, and defense contractors who demand excellence.

"Criterion's Swiss Turning capabilities transformed our medical device production. Their ability to handle .010" diameters with ± .0002" tolerances ensured our implantable components met FDA standards consistently."

Dr. Sarah Mitchell

"We struggled with tight-tolerance aerospace brackets until we partnered with this cnc machine shop. Their 5-axis CNC milling solved our complex geometry challenges within our critical timeline."

James Patterson

"As a defense contractor, we demand zero-failure components. Criterion's ISO 13485 and ISO 9001 certifications, combined with their ITAR registration, make them our trusted cnc machine shop."

Colonel Marcus Webb

"Our prototype needed CNC turning in two weeks. Criterion delivered production-intent samples on schedule with comprehensive inspection reports using their Global Advantage CMM system."

Jennifer Chen

"Criterion's Quality Inspection service—with no-charge Certificates of Conformance—delivers exceptional value. Their OASIS system simultaneously measured 99 dimensions on our parts, guaranteeing compliance."

Robert Johnson

"For seven years, Criterion has been our reliable partner for micro-component prototyping. Their production-intent approach ensures seamless transitions from prototype to full manufacturing runs."

Thomas Whitmore

"Criterion's expertise with titanium, stainless steel, and PEEK materials using 6-axis CNC turning delivers the precision our aerospace components demand. Their ProShop ERP tracking ensures complete traceability."

Angela Rodriguez

"Working with a woman-owned cnc machine shop that maintains FDA and ITAR registration while delivering ± .0002" tolerances is rare. Criterion proves precision and integrity go hand-in-hand."

David Kowalski

"Criterion's Swiss Turning capabilities transformed our medical device production. Their ability to handle .010" diameters with ± .0002" tolerances ensured our implantable components met FDA standards consistently."

Dr. Sarah Mitchell

"We struggled with tight-tolerance aerospace brackets until we partnered with this cnc machine shop. Their 5-axis CNC milling solved our complex geometry challenges within our critical timeline."

James Patterson

"As a defense contractor, we demand zero-failure components. Criterion's ISO 13485 and ISO 9001 certifications, combined with their ITAR registration, make them our trusted cnc machine shop."

Colonel Marcus Webb

"Our prototype needed CNC turning in two weeks. Criterion delivered production-intent samples on schedule with comprehensive inspection reports using their Global Advantage CMM system."

Jennifer Chen

"Criterion's Quality Inspection service—with no-charge Certificates of Conformance—delivers exceptional value. Their OASIS system simultaneously measured 99 dimensions on our parts, guaranteeing compliance."

Robert Johnson

"For seven years, Criterion has been our reliable partner for micro-component prototyping. Their production-intent approach ensures seamless transitions from prototype to full manufacturing runs."

Thomas Whitmore

"Criterion's expertise with titanium, stainless steel, and PEEK materials using 6-axis CNC turning delivers the precision our aerospace components demand. Their ProShop ERP tracking ensures complete traceability."

Angela Rodriguez

"Working with a woman-owned cnc machine shop that maintains FDA and ITAR registration while delivering ± .0002" tolerances is rare. Criterion proves precision and integrity go hand-in-hand."

David Kowalski

"Criterion's Swiss Turning capabilities transformed our medical device production. Their ability to handle .010" diameters with ± .0002" tolerances ensured our implantable components met FDA standards consistently."

Dr. Sarah Mitchell

"We struggled with tight-tolerance aerospace brackets until we partnered with this cnc machine shop. Their 5-axis CNC milling solved our complex geometry challenges within our critical timeline."

James Patterson

"As a defense contractor, we demand zero-failure components. Criterion's ISO 13485 and ISO 9001 certifications, combined with their ITAR registration, make them our trusted cnc machine shop."

Colonel Marcus Webb

"Our prototype needed CNC turning in two weeks. Criterion delivered production-intent samples on schedule with comprehensive inspection reports using their Global Advantage CMM system."

Jennifer Chen

"Criterion's Quality Inspection service—with no-charge Certificates of Conformance—delivers exceptional value. Their OASIS system simultaneously measured 99 dimensions on our parts, guaranteeing compliance."

Robert Johnson

"For seven years, Criterion has been our reliable partner for micro-component prototyping. Their production-intent approach ensures seamless transitions from prototype to full manufacturing runs."

Thomas Whitmore

"Criterion's expertise with titanium, stainless steel, and PEEK materials using 6-axis CNC turning delivers the precision our aerospace components demand. Their ProShop ERP tracking ensures complete traceability."

Angela Rodriguez

"Working with a woman-owned cnc machine shop that maintains FDA and ITAR registration while delivering ± .0002" tolerances is rare. Criterion proves precision and integrity go hand-in-hand."

David Kowalski
The Criterion Difference

Why Choose Criterion Precision Machining?

Three generations of precision machining expertise combined with cutting-edge technology and unwavering commitment to quality.

Certified Quality

ISO 13485 and ISO 9001 certified with FDA and ITAR registration, ensuring compliance for medical and defense applications nationwide.

Advanced Capabilities

Multi-axis Swiss turning, 5-axis CNC milling, and precision inspection systems including Global Advantage CMM with PC-DMIS software for dimensional accuracy.

Material Expertise

Specialized machining of titanium, stainless steels, aluminum, PEEK, and specialty alloys for the most demanding specifications across critical industries.

Woman-Owned Business

WBENC-certified woman-owned company with over 70 years of manufacturing excellence, combining legacy craftsmanship with innovative precision technology.

Meet The Criterion Team

Leadership dedicated to precision, quality, and customer success.

Tanya DiSalvo, President of Criterion Precision Machining

Tanya DiSalvo

President

As the third-generation owner of Criterion Precision Machining, Tanya DiSalvo leads a company with deep roots in manufacturing excellence dating back to 1953. Under her leadership, Criterion has evolved from a general machine shop into a specialized precision machining partner for mission-critical industries including medical devices, aerospace, defense, and photonics. Tanya's vision has guided the company's investments in advanced technology, quality systems, and workforce development. Her commitment to maintaining the highest standards of precision and customer service has earned Criterion ISO 13485 and ISO 9001 certifications, FDA and ITAR registration, and WBENC certification as a woman-owned business. Tanya's leadership ensures Criterion remains at the forefront of precision machining while honoring the legacy of craftsmanship established by her grandfather, Mike Ondercin, over seven decades ago.

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 cost estimation to Criterion Precision Machining. As Estimator and Project Manager, Mike serves as a critical bridge between customer requirements and manufacturing capabilities, ensuring every project is accurately quoted, properly planned, and executed to exact specifications. His deep understanding of CNC machining processes, material properties, and tight-tolerance manufacturing enables him to provide accurate timelines and budgets for complex components across medical device, aerospace, defense, and photonics applications. Mike works closely with customers from initial design review through production, managing technical requirements, coordinating with manufacturing teams, and ensuring quality standards are met throughout the process. His attention to detail and commitment to customer success make him an invaluable resource for clients navigating the complexities of precision part production.

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 by medical device, aerospace, defense, and photonics industries. As Quality Manager, Kelly manages the company's ISO 13485 and ISO 9001 certification compliance, FDA registration requirements, and ITAR quality protocols. She directs the quality inspection team utilizing advanced measurement systems including the Global Advantage CMM with PC-DMIS software, OASIS optical inspection system, and Keyence multi-dimensional measuring equipment. Kelly implements quality control processes at multiple manufacturing stages, from incoming material verification through final inspection and documentation. Her expertise in precision measurement, statistical process control, and regulatory compliance ensures Criterion consistently delivers components with tolerances as tight as ±.0002". Kelly's leadership in quality management has been instrumental in building customer confidence and maintaining Criterion's reputation for reliability in industries where failure is not an option.

Frequently Asked Questions

What does CNC machine shop mean?

A CNC machine shop uses Computer Numerical Control (CNC) technology to precisely manufacture custom parts from metal, plastic, and other materials. CNC machines follow programmed instructions to cut, mill, turn, and shape components with exceptional accuracy and repeatability. Criterion specializes in precision CNC machining for mission-critical industries requiring tight tolerances down to ±.0002".

How much does CNC machining cost?

What tolerances can you achieve in CNC machining?

What materials can you machine?

Do you offer prototyping services?

Are you ISO certified and FDA registered?

What is your typical lead time for custom parts?

Do you provide inspection reports and certifications?

Have More Questions About Our Capabilities?

Our precision machining experts are ready to discuss your project requirements and provide technical guidance.

Certified & Trusted

Awards and Recognition

ISO 13485 certification logo

ISO 13485 Certified

Medical device quality management system certification

ISO 9001 certification logo

ISO 9001 Certified

International quality management system standard certification

WBENC certification logo

WBENC Certified

Women's Business Enterprise National Council certification

Ready to Start Your Precision Machining Project?

Contact Criterion Precision Machining today for a detailed quote. Our team will review your specifications and provide expert guidance on manufacturing your mission-critical 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