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

Fast, easy to use. I lubricated with transmission fluid. Took glaze off fast and left nice crosshatch. You must move quickly up and down. Lubricate hone between each cylinder.

good price worth it

The only gripe I have is that it got hung up in the bottom of the cylinders and at one point it pulled one of the nylon bristles (with the balls on them), partway out, so that it was longer than the rest. I had to cut it off. Perhaps there is nothing to be done about this, but it was constantly getting hung-up in holes and crevices at the base of the cylinder.

Great tool, used this on a 305 chevy and made a excellent hone on each cylinder, even and consistent on each cylinder.

Works to re-hone a cylinder by yourself if you dont want or cant take the block to the machine shop, wich, of course, would be the only proper way to rebuild an engine. I had an engine that was seized from rust in one of the cylinders and this hone was able to clean it up enough to put this thing back on the road. it didnt remove the rust pitting but it made it smooth enough so I couldnt feel it with my fingernail.

I bought this because the idiots i work with pretend to be LS experts. So far everything theyve said has been wrong. They said LS engines cylinder walls will be ruined with a ball hone. So I bought the best ball hone which comes sized perfectly for my engine Im building. Makes perfect cross hatchs. Good product.

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

put a real good crosshatch on my 4.00 inch cylinder wall. could not be happier.

Did a quick hone of the cylinder walls while refreshing the engine over the winter, Bore size on my motor was 4.030

Needed to buy this when I was rebuilding my motor for my 3000gt. Worked beautifully. Crossed hatched nicely and will buy another when it is time to rebuild the motor in my truck and my motorcycle.