By definition, the flex-hone® is a resilient, flexible, honing tool with a soft cutting action. So what does that mean? It means that flex-hones® adjust to the cylinder surface. That’s why they’re used after the cylinder has been sized with rigid ho

Brush Research embraced the benefits of a plateau finish and pioneered the concept of plateau honing culminating in the introduction of the Flex-Hone tool in 1972. The Flex-Hone has gained many nicknames over the years and including ball hone, ball style

One recipe for achieving a plateau finish is to bore or hone to within .003˝ of final size. Then finish to final dimensions with a #220 or #280 grit conventional abrasive and follow up with half a dozen strokes of a #600 grit stone, cork, or a flexible b