BL5 HARD STEEL MANDREL the A-14 system includes a

the A-14 system includes a mandrel assembly and a diamond-plated sleeve

Designed for use with R28-series mandrels

Enhance your honing precision with Sunnen 4GP20 Tooling—designed for high-performance applications requiring accuracy

the CF5 provides consistent results and long service life—making it the trusted choice for manufacturers seeking reliability and efficiency

Maximize your honing precision with the Sunnen R28 2-Stone Blind Hole Wedge—engineered for superior performance in blind hole applications

BL5 HARD STEEL MANDREL the A-14 system includes aThe Sunnen BL5 Mandrel is engineered to deliver exceptional accuracy and surface finish for small to mid sized bore honing applications. Built for durability and consistent performance, it ensures tight tolerances and superior roundness across a variety of materials. Seamlessly compatible with Sunnen honing systems, the BL5 is ideal for both production and repair environments seeking reliable, repeatable results.