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

Easy to use and did the job perfectly. Will be getting more when I need them.

It worked well for my SBC. I thought it should last longer than 1 V8 engine honing. Maybe its not supposed to, I dont know when I was done I noticed the dingle balls were smoothe.

only did one chevy - about 15 pumps with 240 grit (best all round). Coat the bore AND all balls with atf and a brush before use - clean SUPER well till a white clean paper towel shows no grime - Cross hatch pattern was unbelievable - and this was my first time. I wouldnt look anywhere else, drop the dough and do the job right!

Chucked it up in my drill, steady speed & motion, perfect results. Happy camper.

Works as it should, does the job. Its not perfect lol, its a dingle hone, so dont expect machine level results. But if youve got a thin bit of surface rust, or youre just a cheap slop like myself who needed to hone the cylinders in my junky rally car. Its great.

Used on rusted cylinders. Engine actually runs now. Cool tool.

maybe i just got confused reading the information about these hones on a couple of sights.some where I read that these hones will work for a little bit larger hole then the size listing of the hones. this one seams to just make it for a whole thats 4.130. i was hoping it would work for a 4.250 hole .this one is way to small for that size. over all these hones work great for cleaning up a bore.they can even make a good cross hatch pattern on a bore with a ridge and some tapper to it. i use these to clean up a bore before i measure or use my accurate hone with a dial for size to square up the bore a little

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.

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 a second thought 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.

Have used these for years building subaru motors and yet to have an issue. Great product