K4 SOFT STEEL MANDREL Part of Sunnen's A-Series

Part of Sunnen's A-Series

and ease of use

making it ideal for both manual and automated applications

ensuring precision bore sizing and finishing

and consistent results—even in the most demanding production environments

K4 SOFT STEEL MANDREL Part of Sunnen's A-SeriesUnlock 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