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extended abrasive life
Boost your honing efficiency with the Sunnen 3HP28 Tooling—precision-engineered for high-performance applications
Engineered for high-performance cylinder honing
designed specifically for use with Sunnen honing machines
Built for durability and accuracy
K4 HARD STEEL MANDREL extended abrasive lifeUnlock next level performance with Sunnen K4 tooling, engineered for fast, accurate, and repeatable honing in a wide range of applications. Designed for use with Sunnens industry leading machines, K4 tooling delivers exceptional versatility and tight tolerance control in small diameter bore finishing. Whether you are working in automotive, aerospace, or general machining, the K4 tools ensure consistent surface finishes and extended tool life boosting
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