3J Inc is Colorado’s Leading Machine Shop. Our Focus is Excellence.

Quality CNC Machining & Custom Manufacturing

For over 10 years 3J has been committed to machining the best available parts and products
for companies in Colorado and throughout the United States.

Our Machining Services

Our Process

Quality is our top priority. Our process has evolved to produce the most precise and accurate products available on the market.


Our Work

For over ten years, we have been committed to providing quality manufacturing solutions. Review our collection of projects.


Industries We Serve

Though we can custom machine almost anything, we have extensive experience servicing a variety of different industries.

“Great People Making Great Parts.”

“I'm really happy with the packaging, finish, lead times, and pricing. You guys really nailed this one.”

Design Engineer, Solar Industry

Tell Us About Your Project

We can support you from engineering and design all the way though a finished part – start the conversation today!

Request a Free Quote