Inventor Spotlight: Devan Gregory and the HAMMERKRO™

At Invention City, we’re privileged to work with inventors whose drive, vision, and energy fuel innovation—and Devan Gregory is one of those rare individuals who embodies all three.

Devan is both an inventor and an entrepreneur with an infectious enthusiasm and a powerful belief in his flagship product: the HAMMERKRO™. This tool isn’t just another gadget in a toolbox—it’s a labor-saving, space-saving innovation tailored to the real-world needs of contractors and DIYers alike.

“HAMMERKRO is the only 3-in-1 hammer, axe, and crowbar tool designed to save contractors and DIYers time, space, and money.”
— from hammerkro.com

Devan approached Invention City to refine his vision and move from idea to reality. Our team has been thrilled to support him with CAD design, prototyping, and preparation for manufacturing. The image above shows the latest milestone: a painted 3D model of the HAMMERKRO™, freshly delivered and already capturing the bold utility of Devan’s concept. The next step? A fully functional machined steel prototype, which is currently underway.

Inventors like Devan remind us why we do what we do. His creativity, focus, and commitment to making something truly useful are what turn good ideas into great products.

We’re proud to be part of Devan’s journey and can’t wait to see HAMMERKRO™ in the hands of the people who need it most.

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