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

Did a good job on a Kawasaki lawn mower engine that had issues from water in the cylinder. Not cheap but you get what you pay for.

Used this to hone four cylinders in a two-stroke outboard motor. Didn’t take long for the honing balls to start breaking off as they passed by the cylinder wall ports. Luckily the ball stems are plastic and didn’t damage the cylinder walls. Eventually got the job done, though, producing a nice crosshatch surface finish.

Well made and seemed to do a nice consistent job. I just started up the engine I used it on and everything seems to be fine.

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

Used the 89mm size hone for my 84mm cylinders in my 52 motor and seemed to work good. Just lubed it up with some motor oil and followed instruction and the cross hatching seemed to come out really good, gotta speed it up on the last few strokes or else your cross hatches will not be close to 45 degrees which I found out quick enough.

Cleaned up my LS2 cylinders with ease. Get one, do it yourself.

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.

Exactly what I needed for 5.3 LS

Smooth

Worked as expected