Call us: 937.242.6165



With full time engineering staff in Troy, Ohio, GSM engineers manage our manufacturers both domestically and in China so we maintain quality while keeping expenses down. Our project engineers are located across North America so they can attend mold trials or discuss changes in person. We continually strive to improve functionality and increase productivity without sacrificing time or budget.

We manufacture:

  • Domestic or international builds
  • Prototype tools & limited run
  • Single to high cavity molds
  • Steel or aluminum molds
  • Hot-runner or cold-runner systems
  • Fill & cool analysis
  • Molds for presses 55 to 1000 tons
  • Process development including gas-assist
  • Gage & fixture development
  • Twin-shot or over-mold
  • High temperature resins

Our Manufacturing & Qualification Process


From the initial build through tool completion, we keep our clients involved in the tool manufacturing with in-process updates. You stay apprised of each step via our structured workflow and detailed drawings.

Before we classify a tool as complete, we take the extra step to qualify both the parts and the tool itself. Part dimensions are verified using your material before we ship the tool to you. We carefully analyze and verify the parts meet your exact specifications and needs before we send your new tool. We also take the extra step to qualify the tool to ensure it works correctly not only the first time but will continue to provide you with repeatable, quality performance for years to come. Proven performance comes with every tool from GSM.

Let’s Talk!

We would love to work with you on your next tool development, tool manufacturing or tool maintenance project! Please contact us to get started today.
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Our Warranty

We build tools right the first time but if a problem should arise with the workmanship, we are committed to making it right.
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