H70 SILICON CARBIDE STONE SET, VITRIFIED BOND and there is no better

and there is no better way to measure rod bores than with Sunnen's AG-300 and AG-400 Precision Gages

engineered for high-precision honing applications

Engineered for accuracy and durability

the BL20 is trusted in production and repair shops demanding reliable

Built for durability and consistency

H70 SILICON CARBIDE STONE SET, VITRIFIED BOND and there is no betterUnlock unmatched precision with the Sunnen H70 Abrasive, engineered for high performance honing in demanding applications. Designed to deliver consistent surface finishes and tight tolerances, the H70 is ideal for a wide range of materials including steel, cast iron, and alloys. Whether you are finishing engine components or hydraulic cylinders, count on the H70 for faster cutting, longer life, and superior results. Trusted by professionals