P28 4-STONE MANDREL the ASC streamlines your honing

the ASC streamlines your honing process with minimal operator intervention—maximizing productivity and quality in every part

This high-quality wedge ensures consistent stone pressure and optimal contact

and reliable operation—making it a trusted choice for production and repair environments alike

superior bore geometry

designed to work in tandem for optimal performance

P28 4-STONE MANDREL the ASC streamlines your honingAchieve exceptional honing precision with the Sunnen 4GP28 Honing Tool, designed for high performance applications requiring accuracy, repeatability, and durability. This tooling ensures optimal abrasive alignment and efficient material removal, delivering superior surface finishes and extended tool life. Ideal for demanding industrial environments, the 4GP28 offers the reliability and performance professionals expect from Sunnen.