Custom Brass Fabrication & Precision CNC Machining - Custom Metal Fabrication Project Portfolio
Pen Manufacturing provides custom brass fabrication, metal fabrication, and precision brass CNC machining for OEMs, product engineers, and procurement teams across the United States. From our AS9100- and ISO 9001-certified facility in Anaheim, California, we machine, form, join, finish, and assemble custom brass parts for prototype, low-volume, and high-volume production.
Few metals reward experience like brass — it machines beautifully, joins cleanly, and finishes to a standard other alloys can't match. Get a Quote and upload your CAD files to put three decades of that experience on your next part.
What Is Brass Fabrication?
Brass fabrication is the process of machining, cutting, forming, and joining brass — a copper-zinc alloy — into finished components. Manufacturers specify brass for its outstanding machinability, corrosion resistance, electrical conductivity, and bright, premium appearance, making it a staple in electronics, plumbing, telecommunications, and aerospace hardware.
As a full-service partner for brass custom metal fabrication, we handle every operation in-house — so your fittings, terminals, and housings move from raw stock to finished parts without leaving one facility.
Brass Applications We Fabricate
With the vast applications that brass provides we have used it to apply to an array of projects in industries such as aerospace, wastewater filtration, and more. Whether for free cutting brass, engraving, high-tensile, or gliding metal brass, applications of brass material include:
Water transport through pipe and fitting
Nuts, bolts, & threaded parts
Marine hardware
Builders hardware
Electrical terminals
Hydraulic equipment fittings
Gas valves
Benefits Of Brass
Corrosive resistance
Excellent joining, plating, polishing, and finishing characteristics
High class look
Excellent machining characteristcs
Good strength and ductility
Electrical and thermal conductivity — a natural fit for terminals, connectors, and RF hardware
Inherently antimicrobial surface — like all copper alloys, brass suppresses microbes, a quiet advantage in plumbing and touch hardware
Brass CNC Machining Services
Brass is the benchmark other metals are measured against: free-cutting brass (C360) carries a 100% machinability rating, the standard every alloy is compared to. In practice, that means faster cycle times, superior surface finishes, and longer tool life — which keeps the cost of precision brass machined parts low at any volume.
Our brass CNC machining covers milling and turning of fittings, valve bodies, terminals, threaded inserts, connectors, and instrument components to tight tolerances, with critical dimensions verified on calibrated Keyence CMM equipment before shipment.
Brass Sheet Metal Fabrication & Forming
Brass's ductility makes it a pleasure to form: crisp bends, clean cut edges, and detail work — including engraving — that harder metals resist. We cut and form brass sheets into decorative panels, trim, contacts, shielding components, and precision brackets, holding consistent dimensions from first article through production.
Brass Enclosures & Housings
Conductivity is what sets brass enclosures apart. For RF and EMI shielding, instrument housings, and electrical terminal boxes, brass provides the electrical performance aluminum matches only with extra treatment — plus a finished appearance that works face-out on architectural and consumer-visible hardware.
Because brass solders and brazes so readily, we can build custom brass enclosures with seamless joined construction instead of visible fasteners, from one-off prototypes to production quantities.