K12 CBN STONE, METAL BOND delivering superior surface finishes and

delivering superior surface finishes and extended tool life

Sunnen FFA4 tooling is engineered for precision honing of small bores

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

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

The Sunnen Dial Bore Gage delivers precise

K12 CBN STONE, METAL BOND delivering superior surface finishes andPrecision meets performance with Sunnen K12 abrasives engineered for consistent, high quality honing results. Ideal for a wide range of materials, the K12 delivers exceptional cutting action and surface finish, maximizing productivity while minimizing wear. Whether you are refining bores or achieving exact tolerances, trust the K12 to keep your process sharp, smooth, and reliable.