CNC Precision Machining
Precision custom components manufactured to your exact specifications.
Years in Business
Sq. Ft. Facility
Precision-Machined Parts per Month
Satisfied Customers
ISO 9001: 2015
What is Precision Machining?
Precision machining refers to the process by which a machinist uses Computer Numerical Control (CNC) equipment to remove excess raw materials and transform remaining materials into specific shapes and sizes, all the while maintaining tolerance, or dimensional accuracy.
CNC precision machining leverages the latest precision technology, including computer-aided design and computer-aided manufacturing software, to fabricate finished materials according to customers’ exact specifications. These precision-machined components are typically small, with tight tolerances.

Precision Machined Components
- Aluminum
- Brass
- High/Low Carbon Steel
- Copper
- 300/400 Series Stainless Steel
- Delrin©
- Rulon® J
- Poly Ether Ketone (PEEK)
- Polytetrafluoroethylene (PTFE)
- Acrylonitrile Butadiene Styrene (ABS)
- Teflon™
- Molybdenum
- M50
- 4340
- 17-4
Our diameter standard tolerances are +/-.001″ and as tight as +/-.0001″ in special features.
Standard length tolerances are +/-.005″ and can also be as tight as +/-.0005″
Diameter:
.024″ to 3″ in diameter
Length of parts depends upon the project. We’ve created parts as long as 12′ and as short as .01″ in length.
Gold, silver, copper, zinc, nickel, and tin plating, as well as anodizing, black oxide, and other surface treatments
What Makes W.H. Bagshaw So Special?
Family Owned & Operated Since 1870
The cornerstone of American manufacturing for over 150 years, our ongoing success is a testament to our commitment to quality, customer service and continuous improvement.
Strict Quality Standards
We’re ISO 9001:2015-certified, so you can rest assured that each item we produce adheres to the highest quality standards.
30+ Swiss CNC Machines
With over 30 Swiss CNC machines in our factory, there’s no precision machining job too big — whatever you need, we have the capacity for it.

Materials On-Hand
Aluminum, brass, 300/400 series stainless steel, Delrin© plastic, molybdenum and more — we offer a wide variety of materials for a wide variety of applications.
Rapid Response Times
We pride ourselves on our responsiveness — you can always expect to hear back from one of our representatives in 24 hours or less.

Made in the USA
We’re big believers in American manufacturing, which is why all of our orders are fulfilled right here in Nashua, NH.
Precision-Machined Components
Precision machining encompasses a number of different machining processes, including turning, milling and lathing. As a result, precision-machined components are suitable for a wide variety of applications across a broad spectrum of industries, including:
Our Quality Assurance Process
Here at W.H. Bagshaw, we know that the quality of our work impacts the quality of yours.
That’s why we’ve implemented a strict quality assurance process — including scheduled in-process inspections based on part requirements and first-article inspection reports (upon request) — designed to ensure that every precision-machined component we produce is of the highest caliber and made according to your specifications.

For added peace of mind, we also offer a complete Production Part Approval Process (PPAP) upon request for any component or order.
Most important, our quality management system is ISO 9001:2015-certified, which demonstrates that our precision machine shop is capable of consistently delivering high-quality parts that meet our customers’ exact requirements.
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