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December 9, 2025

Coolant Hole Configurations

December 9, 20250
Star offers three unique coolant hole configurations: Single Hole, Dual Hole, and Kidney Shaped Hole...
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Gundrill Wear Characteristics

December 9, 20250
As a rule, gundrills wear in three distinct areas: at the point, the face, and the outer diameter. After regrinding, each of these should be returned to their original factory specifications. The area most missed is the outer diameter, which is often left in less than pristine condition and should not be used as-is.
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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