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

Worked great would buy again

pretty much a good quality hone. just the right size to use on a Mopar 318 and 360. done both engines with this honing tool. good results and obviously the tool still looks new.

Spec was crosshatch 30 to 45 degrees. Profiled the wet sleeves first, they were all in spec, so went to town. Low speed drill, brisk in out action achieves great results. Lubricate the hone before every use. Go a little past the return direction so you reduce the low angles at the end of the stroke.

Expensive, but did a professional job honing my jeep cylinders.

Worked great for honing a Ford 289 .030 over. If using an electric drill, swap batteries after the first bank.

....looks great, arrived fast!

Great price and worked better than stone style honing tool.

I used these per ring manufacturer recommendation for grit. Worked perfect. Easy to use.

Works great, just remember to use oil or it gets aggressive.

Bought this to rehone the 3.8 Buick cylinders after trying to use them old stone three arm hone devices. I have no idea why I ever thought that contraption would ever work. This thing is a beast. Takes seconds to use properly and I didnt have second thoughts about putting the crank back in and hooking up the Pistons. If you ever plan during your mid-life crisis that you must rebuild an engine, save yourself some time and get this and the next grit under and use these to perfectly hone your sbc or whatever man.