Star SU specializes in solving unique gear manufacturing challenges to deliver best-in-class solutions for precision gear cutting applications across a variety of industries. Backed by the strength of the Star Cutter organization and a global network of technology partners, we provide the tools, coatings, and technical expertise needed to support the entire gear manufacturing process. This ensures an excellent customer experience and high-value solutions that improve productivity, gear quality, and cost of ownership across the life of the tool.
The gear tool group is represented by Star SU LLC, a global sales company with a presence in North America, South America, China, South Korea, India and Europe. It is a single technology source for gear manufacturers, offering a wide variety of machinery, precision cutting tools, and services including vertical gear hobbing machines and chamfering and deburring machines; gear hobs and milling cutters; gear shaper cutters and shaving tools; scudding®, skiving, chamfer and deburring tools.
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The round tool group provides custom-engineered tooling solutions across a wide variety of precision applications that solve unique challenges and that reduce machining time, improve quality and productivity to drive overall cost savings. Round Tool products are marketed, sold and serviced by Star SU, a Star Cutter Company affiliate with a global sales capability.
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The machine tool group, located in Elk Rapids, Mich., designs and manufactures solutions for CNC tool grinding that address custom or high-volume manufacturing applications and reconditioning of end mills, high performance drills, drill points, step drills, form tools, gear tools, broach tools, medical tools, inserts, and other custom tools.
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Through this team, we’re able to offer state-of-the-art technology to recondition and restore all types of tools, including other manufacturers, to their original state, improving productivity and quality in machining operations.
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H.B. Carbide manufactures tungsten carbide custom, altered standard and standard blanks and preforms, starting from powder through finished ground blanks available in a comprehensive selection of grades to deliver high-performance, reliable near-net shaped tools that address specialized customer application challenges across diverse industries.
LEARN MOREOur goal is simple: Provide our customers with a best-in-class solution to fit each application while fostering long-term, personal relationships with our customers.
With nearly 100 years in manufacturing, our focus on innovation and providing you an excellent customer experience is embedded within our DNA.

We are committed to employee well-being and a healthy work/life balance, encouraging continuous learning, an entrepreneurial spirit, and a team-oriented culture that strives for mutual growth and development.
We relentlessly pursue customer satisfaction through reliable and responsive service, leveraging creativity coupled with accountability to deliver innovative solutions that get it right the first time, on time while pursuing continuous improvement.
We conduct business ethically, acting with integrity and fairness to all people in all situations, encouraging an environment where we can share and respect personal and professional differences.
We are committed to providing a healthy and safe workplace that is in compliance with local, state, federal and international laws, and focused on protecting our environment to create a sustainable future.
We understand the importance of our supplier-partners to our success and encourage ongoing strategic collaboration that leads to continuous improvement and thus mutual growth and success.
Star SU delivers world-class gear cutting tools, advanced coating technologies, and engineering expertise that help manufacturers improve precision, productivity, and performance. Driven by decades of innovation and global expertise, we engineer complete solutions that support the evolving demands of gear manufacturing worldwide.
5200 Prairie Stone Parkway
Suite 100
Hoffman Estates, IL 60192 USA
Tel. (847) 649-1450
Fax. (847) 649-0112
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