Precision parts for the builders of what’s next.
Machined in California
BELL Machine Works is a precision CNC machine shop that runs on software, not paper. Your parts move at the speed you iterate: every revision controlled, every job tracked, and you never have to chase a status. Fast and accurate, never one at the expense of the other.
Who we machine for
Aerospace
Prototypes and production hardware for flight programs, under one quality system. Parts for launch vehicles and propulsion, satellites and spacecraft, avionics and cabin hardware. Material certs and dimensional inspection on every job.
Defense
ITAR registered, with a separate isolated environment for controlled work, on U.S. soil under U.S.-person administration. Parts for drones, submarines and unmanned marine systems, ground vehicles and the sensors on them.
Physical AI
Robotics and autonomous hardware moving from prototype into low-volume production. Humanoids, mobile robots, autonomous vehicles and the test cells that qualify them. Built for teams shipping a new rev every few weeks.
The same materials, tolerances and documentation also go into semiconductor equipment, microfluidics and medical devices. See industries →
What we hold
Tightest held: ±0.0002"
to 8:1 depth
2-week standard lead time
Does your part fit? Checked in every orientation
Track record
From our ERP · every job since 2025
every job shipped
Founded 2025 in California.
Why we exist
Built in America. Machined to print.
ITAR work on U.S. soil by U.S. persons.
ITAR RegisteredCAGE 18MB0Bring us your toughest design challenges. We will machine them.
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