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

This honing tool worked perfectly and now we’re ready to start the re-assembly of our engine.

Really great product for its affordability

Got the hone oil a must to keep it wet. My option.

If a brush can be a work of art, this is the brush. Works absolutely amazing at de-glazing cylinder walls. This brush is what is recommended by most, if not all vehicle manufacturers.

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.

Used this to hone out my 717 SeaDoo 2 stroke. Cleaned up the cylinder walls nicely. I ran it easy the first hour to break in the old rings again. Runs good now.

worked good nice cross hatches.

Works great. Produces a very good finish without cutting. Great tool if your cylinders are in good shape. I had to use a 3 stone hone to cut a little out of my cylinders and used this tool to get a good final finish after cutting. A+

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

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.