Proto Works Machining
Turning Ideas Into
Metal
Fast
Prototype + short-run CNC machining for R&D and product teams. Quotes in 24 hours. Parts in 2–7 days.
Tolerances to ±0.0005″
DFM from real machinists
Inspection reports on request
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In-House Precision. Real Machines. Real People.
Proto Works Machining operates a full CNC job shop — not an automated quoting portal.
Core Capabilities:
Every part we quote is reviewed by an experienced machinist — not an algorithm. If something
doesn't look manufacturable, we'll tell you before you waste time or money.
Real Machinists. Real Parts. No Middlemen.
ProtoWorks Machining runs out of a working production shop in Milwaukee, WI — not a marketing office. We’ve spent years cutting prototypes, fixtures, and short-run parts for OEMs, R&D teams, and startups that need fast turnaround and flawless quality.
We’re not a middleman or online platform. When you work with us, the same machinists who program the toolpaths and run the parts are the ones quoting your job and checking every dimension before shipment.
That’s why communication stays tight, quality stays consistent, and lead times stay short.
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Sample Projects
High-precision machining across a wide range of materials




Representative images only. Actual customer parts are not shown for confidentiality.
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How It Works
From design to delivery in three simple steps
Talk Directly to a Machinist.
Send your print or model — we'll get you a quote fast, from a real person who understands machining.
What to Include:
•
Part description or print
•
Quantity and required delivery date
•
Any critical tolerances or special notes
Contact Info
cooper@protoworksmachining.com
Phone
(262) 781-3870
We Actually Answer the Phone
We typically reply within 24 hours — and if your job is urgent, just call. We actually answer the phone.
© Proto Works Machining — Real CNC shop. Real machinists. Direct communication.