Close-up of precision CNC machining in progress

Waterbury, Connecticut

Precision machining
that holds tolerance
when it counts.

CNC milling, turning, and custom fabrication — from single prototypes to full production runs. Built on decades of hands-on expertise, delivered with the attention your parts demand.

Capabilities built
around your specs

From blueprints to finished parts, we handle the full machining process — no shortcuts, no compromises on quality.

CNC Milling

3-, 4-, and 5-axis CNC milling for complex geometries and tight tolerances. Aluminum, steel, titanium, and engineering plastics — we machine what your design requires.

CNC Turning

Precision turning for shafts, bushings, sleeves, and cylindrical components. Consistent surface finishes and repeatable accuracy across every batch.

Custom Fabrication

Bespoke parts and assemblies that don't come off a shelf. We work from your drawings, samples, or ideas — and help refine the design for manufacturability.

Prototyping

Rapid prototyping that moves from concept to physical part fast. Validate fit, form, and function before committing to production tooling.

Production Runs

Low to medium-volume production with consistent quality from first part to last. We scale efficiently without sacrificing dimensional integrity.

Quality Assurance

Every part is inspected against your specifications. Dimensional reports, material certifications, and traceability — documented and ready.

Interior of Guerrera Machine Company workshop showing precision equipment

Rooted in Waterbury.
Built on craftsmanship.

Guerrera Machine Company LLC is a Waterbury-based machine shop serving industries that depend on precision. We specialize in CNC milling, turning, and custom fabrication — delivering parts that meet exact specifications, on time, every time.

Our approach is straightforward: understand what you need, advise on the best path to get it made, and execute with the care that comes from years in the trade. No unnecessary complexity — just honest work and parts that fit.

Waterbury Based & operating locally
Full-spectrum Prototype to production
Hands-on Expertise-led approach

The difference
shows in the details

Precision by default

Tight tolerances aren't an add-on — they're the baseline. Every part leaves our shop meeting the specs you specified.

Direct communication

You'll work directly with the people running the machines. No middlemen, no lost messages — just clear, honest answers.

Material expertise

We understand how metals and engineering plastics behave. That knowledge helps us recommend the right material and process for your application.

Local & reliable

Based right here in Waterbury. When you need something turned around, we're not a call away — we're a drive away.

We machine
what you specify.

From common alloys to specialty materials — if it's machinable, we can handle it.

  • Aluminum (6061, 7075, 2024)
  • Stainless Steel (304, 316, 17-4PH)
  • Carbon Steel (1018, 4140, 4340)
  • Titanium (Grade 2, Grade 5)
  • Copper & Brass
  • PEEK, Delrin, Nylon

Have a part to machine?
Let's talk.

Send us your drawings or describe what you need. We'll get back to you with a clear assessment and a competitive quote — no obligation.

Request a Quote

Get in touch
with us.

Ready to discuss your project or need a quote? Reach out — we respond promptly and give every inquiry the attention it deserves.

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