Brush Research FLEX-HONE Cylinder Hone, GB Series, Silicon Carbide Abrasive, 4-1/8 (105 mm) Diameter, 240 Grit Size

Item worked as advertised. Provided quality hone in my cylinders.

Cleaned surface rust from unprotected cylinders and made them look new. Very happy with results and quality.

This flex hone worked well for aircraft cylinder engine cylinder finish, and honing out some scratches and score marks. Well packaged and appeared to be well made.

took the glaze off quickly. Very pleased. delivery and packaging were also good.

Got a Chevy 6.0 from a buddy of mine for free, used this hone to deglaze the cylinders. Seem to work awesome on a 4 inch bore with the 240 grit hone. Not sure why I ever wasted time with a 3-stone style hone. The dingleball hone worked way better.

Worked nicely for my situation. Little bit pricey though.

Worked great for b20v block mid bluid( high compression pistons and new rings of course)