K4 SOFT STEEL MANDREL The Sunnen A-20 Honing Tooling

The Sunnen A-20 Honing Tooling System is engineered for precision honing of small-diameter bores

and ease of use

engineered for unmatched precision

the K20 delivers consistent results

and consistent results—even in the most demanding production environments

K4 SOFT STEEL MANDREL The Sunnen A-20 Honing ToolingUnlock 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