Serving the Defense & Commercial Industries Since 1962
We are a defense contractor committed to providing high quality precision machining services at an economical cost. We have manufactured flanges, valves, fittings, and various critical components for the defense and commercial industries for over 55 years. Guill Tool adheres to the strict criterion of ISO 9001, military standards and specifications.
Precision Manufacturing Expertise Is Here For You
Why Choose Guill Tool For Your Precision CNC Machining
We have been an AS9100 facility since 1995. ISO 9001:2015 guides our work processes at every level. We are dedicated to continuous quality improvement.
ISO 9001 Certified
We have been an ISO 9001 facility since 1995. ISO 9001:2015 guides our work processes at every level. We are dedicated to continuous quality improvement.
Ask us about our Nuclear Plant Material Special Emphasis Program (Level 1/Subsafe).
Made in the USA
Our products are manufactured in the USA using lean principles, and the highest quality in an ISO 9001:2015 facility.
Efficient Precision Machining
Helping You Reduce Your Total Cost
Unparalleled Customer Service
We excel in building and sustaining long-term relationships. Our extensive supplier chain can meet material control requirements for Level 1/SUBSAFE, Nuclear Plant Material and Oxygen Clean.
We are dedicated to helping the defense industry reduce total ownership cost.
Wide Range of Capabilities
Our 5-axis CNC Machine Center is capable of machining a 27.6” diameter at a 28.7” length while our EDM Hole Starter can drill a 0.008” hole, and our EDMS can machine to a tolerance of 0.0002”. For a full listing of our machinery please visit our Facilities page.
In-House Quality Control
We have decades of experience manufacturing. All of our products are held to the most stringent quality control standards in the defense industry.
Our Engineering Staff
Our skilled engineers provide on-site component design and flow analysis. Guill Tool employs personnel who have been designated Supplier Delegated Inspectors by the General Dynamics Corporation, Electric Boat Division, and Northrop Grumman Shipbuilding, Newport News.
332710 – Machine Shops
332721 –Precision Turned Products
332911 – Industrial Valves
332912 – Fluid Power Valve and Hose Fittings
332919 – Other Metal Valve and Pipe Fittings
333514 – Special Die & Tool Sets
3599 – Machine Shops
3451 – Screw Machine Products
3491 – Industrial Valves
3492 – Fluid Valves and Hose Fittings
3494 – Valves and Pipe Fittings
3544 – Special Die and Tool Sets
4730 – Hose, Pipe, Tube, Lubrication and Railings Fittings
4810 – Valves, Powered
4820 – Valves, Non-Powered
CAGE Code: 29030
DUNS Number: 00-119-8233
Serving the Defense and Commercial Industries
High Energy Fluid Systems
• Pure Water
• Reactor Coolant
High Pressure Gases