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"Serving the industry since 1972"
Master Tool and Mold Capabilities
Plastic Injection Molds
We design and build production-ready injection molds for high-volume and complex parts. From prototypes to multi-cavity tools, every mold is tailored to your press, cycle time, and part geometry.
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Close-tolerance, high-efficiency molds
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Moldflow-guided designs (when needed)
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Materials: ABS, polycarbonate, nylon, and more
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Tool types: Hot runner, cold runner, family molds
Die Cast Dies
Built to handle pressure, heat, and repeated use, our die cast dies are crafted to deliver clean shots and consistent part geometry—every time.
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Aluminum, zinc, and magnesium die applications
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Core/cavity detail with tight dimensional control
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Robust materials and heat treatment options
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Built for longevity and easy maintenance
Tooling Repair & Maintenance
Fast-turnaround repairs, welds, and reworks done in-house to get your tooling back in production—fast. Whether it’s planned maintenance or an emergency fix, we help you reduce downtime and extend tool life.
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Full disassembly, diagnosis, and rebuild
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Weld repair and spotting
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Insert replacement and surface rework
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In-house machining for precision fit
Let’s Build Something Together
Whether you're starting from scratch or looking to extend the life of existing tooling, Master Tool & Mold is ready to help.
Tel. (262) 377-8030
765 11th Ave, Grafton, WI 53024
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