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

I was very pleased with how well that this brush worked. I had one of these hones for over 20 years until someone borrowed it and never brought it back. What I am trying to say is that this is a very high quality hone, and will last a long time

Good product and it got the job done on a golf cart engine that I was rebuilding but I did have some of the turds come off of it at the end of the hone. Worked very effectivly and once the few turds came off right away didnt have another issue with it. No more than I will be using it I couldnt justify buying an expensive one but I am still very pleased with this product cause it still got the job I bought it for done

I used this hone on a 2.4l Volvo block to deglaze and put new cross hatching in the cylinders. This hone works amazing and was worth every penny. I was very nervous about doing this myself but after the first one I was comfortable with it. I used a Dewalt 20v drill on high and ran it up and down multile times for 2 passes using ATF as lubricant. The before and after speaks for itself. This thing works great.

Great cylinder hone for rebuilding engines, produce great cross hatching and a nice hone job.

Worked nicely for my situation. Little bit pricey though.

Worked fantastic to hone a 4.7 HO from an 02 Grand Cherokee. I used 5w-30 as the lubricating oil (it says on both their website and the instructions on the box that you can either use their cutting oil or just a normal 5w-30 oil), put a couple sheets of cardboard below the engine block and went to it. Watch a few videos on how to do it and the rhythm to use to achieve your correct cross hatching pattern and youll be good to go. It took me two cylinders to get it right where I wanted it and then I was golden. Make sure when doing it, you use the hone as little as you need to so you dont overdo it (Not really sure if you could, but thats the general rule Ive always heard with these and figure it cant hurt to go by it).

Used to hone cylinder bores on engine rebuild. Nice cross-hatch finish.

worked perfect to deglazed cylinder wall on 2003 Ford Focus 2.0L SPI , also known as the dropped valve seat engine SOHC. Adds a nice crosshatch to cylinder. Directions for use were on end of brush box.

Works very well - easy to use if careful.

Buy exact fit to the .10 or one .10 larger Working on a 22r Toyota stock bore 3.6. This hone did its job with a nice cross hatch. However, the hone just barely hit the bore walls. Maybe this is by design but I feel I should have gotten the 3.75 bore hone as my bore size is 3.6 If your bore is 3.5 then you would be fine. The hone would have a bit of pressure on the bore walls. If you plan on honing a 22r look for the next size up. The balls on the hone wore down Farley fast making flat spots on most the balls. So when you use this you do not want to hone one bore at a time. Make like 2 passes per bore to break in the hone tell you have broke the glazing off the bore walls and broke in the hone, then work on your cross hatch pattern. Over all I like this hone and its ease of use but the fact that I most likely will not be able to use it again, I may get one more use from it in 5-8 years witch would pay for it self then but a stone hone would be more cost effective. If you build the same 3.5 size bore engine all the time this hone would be ideal. Cause you can just grab put in drill and hone (adding cutting oil).