Brush Research GBD40024 FLEX-HONE, 4 (101mm) Diameter, 240 Grit, Silicon Carbide Abrasive (Pack of 1)

awesome---cleaned up a 7 inch bore cylinder 10 feet long and shows little wear---highly recommend

Performed as needed

Works perfectly

Yes

Great for cleaning up cyl. Got another for smaller moter. I will get more as a good price keeps me coming back.

Nice brush home all arrived in tact and ready to use

Worked as expected

Technique for a ball hone is easily found online but it would have been reassuring to have the instructions directly from manufacturer. It worked as I expected and should last a long time.

Smooth

Hubby says this is a great tool in his engine rebuild.