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

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!

Product performed better than expected... worked well for the job I needed it for ... would buy again and definitely recommend!!

This is the only hone to use on engine cylinders. I am a master mechanic and the reasons are many. The cross hatch pattern this hone makes is the best for breaking the glaze on new rings and seating them in. Brake type hones are good for rubber seals, plungers, etc to steel bores but not for high friction steel to steel applications. Dont be a cheap skate when it comes to your engine - Go with the best parts and practices. Also, dont use Synthetic oil in engines with new rings. Get at least 500 miles on them and then switch to a synthetic (Same Brand) if you want to use it.

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

dont have a lot of experience with honing, so nothing really to compare it to. there is a technique to get the right cross hatch pattern. just used it to clean up the cylinder wall when installing new rings. have to move it quickly depending on the drill speed, but it left a really nice pattern and cleaned it up really nice. its quite aggresive so it only takes a few seconds. be careful

Stock engine refresh 4.0in bore. This thing worked great. Tip: Get a buddy and make them keep it flooded with lube while you stroke it;) Use wd40 or whatever is cheap. Youll use most of a can. Then wash that engine with soapy water and a brush, or just pressure wash it. Its going have lots of fine metal particles everywhere from the hone process.

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

Worked great for b20v block mid bluid( high compression pistons and new rings of course)

I love this hone! It works great and no fuss. I used it on a 6.5 turbo diesel to remove surface rust and bring it back to running order for a rebuild

Cylinder