top of page


Specializing in Mold Making for Automotive, Electronic, Medical Industries, and more!

Diamond Tool & Engineering works with custom injection molding manufacturers across the country to produce parts for the automotive, electronic, medical and other manufacturing industries.
With technology in industry continuously driving production to smaller, more powerful components, staying connected with the fast-paced developments in the plastics and mold making industry ensures excellence in what we deliver. We excel at creating plastic injecting molds meeting extremely tight tolerances and with complex geometries.

Industries: About

Speed to Production

Every day counts when getting a part into production. We pride ourselves in getting the plastic injection mold design right the first time, and that gets you into production faster. In 98% of tooling projects, our molds are ready for production following the first sampling – saving weeks of time.

Industries: About

Quality When Cosmetics are Important

Our commitment to customer-centered continuous improvement, industry best practices, and emerging manufacturing technologies, ensures our customers receive only the highest quality plastic injection molding tools.

Industries: About

Responsive to Engineering Changes

We get it right the first time and we are responsive to engineering changes – the tweaks and adjustments that are a critical part of working with automotive suppliers.

Industries: About

Exotic Molding Materials

Diamond Tool & Engineering loves the challenges that comes with working with some of the more exotic materials being develop with today’s technology. We deliver an ultra-precision mold that can handle the most advanced engineered and high performance resins.

Industries: About

We deliver the best of both worlds – the high quality of domestic engineering and the lower cost of tooling overseas. We have established excellent relationships with plastic injection mold building facilities in China. We have proven processes that develop consistent high quality results. We have domestic facilities to make any mold adjustments required.
We pride ourselves in getting the plastic injection mold design right the first time, helping you get into production fast. But we don’t stop there; we love to step up to the plate and innovate when any new challenging project comes our way – tooling for laser guns, soap dispensers, detergent dispensers, optical lenses, and more; we have got you covered. Our highly qualified team pairs up-to-date technology with great customer service that will exceed your expectations every time.

Industries: About

Mold Projects

From Laser Guns to Motorcycles

Injection Molding for the Masses, all of us at Diamond Tool & Engineering enjoy jumping in on a challenging new project. Our enthusiasm is evident in our work – creating high quality injection molds and tooling. We enjoy what we do.

Industries: About

In the Beginning

Our very first mold project was a rubber injection mold (not a plastic mold) for a Polaris four-wheeler. Since then, we went on to make injection tooling for laser guns, soap dispensers, detergent dispensers, optical lenses and so many products in between. Our work has been utilized by some of the world’s largest companies to some small single-employee molding shops. One thing has remained consistent, our commitment to quality products and service on every account.

Industries: About

Business is About the People

You bet we pay extreme attention to detail with our parts and processes, and we absolutely get carried away with technology. But when we ask ourselves, “What do we enjoy most?” – the answer is always ‘our customers.’ We are good at what we do, and we take a lot of pride in meeting or exceeding our customers’ expectations. We look forward to sharing our enthusiasm with you.

Industries: About

At the End of the Day

“At the end of the day, after the lights go off and the robots are working in the dark, what we value most is the committed relationships we have gained with our customers. And even through the rough times – the dot com bust in ’97, the recession of ’09 – our customers stuck by our side and got us through it. We are fortunate to have made so many friends. For me, business is all about building trust, creating friendships, and nurturing relationships that last.”

-Kent Smith, President, Diamond Tool & Engineering

Industries: About
bottom of page