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

Fast, easy to work, very little mess to clean up

This flex hone worked well for aircraft cylinder engine cylinder finish, and honing out some scratches and score marks. Well packaged and appeared to be well made.

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

I contacted Brush Research to make sure I was getting the appropriate hone, because the option list is extensive and I wanted to be sure I ordered the correct brush. The staff was very helpful and answered my questions and advised me on the right brush to buy. However the price they told me for buying it direct from them was considerably more than buying from Amazon? So Amazon it was, still their product. I used it with a cordless drill using 5w-30 oil for about 20-40sec. I think it worked great and the cylinders for my Super Beetle look awesome and are ready to go back together. Cheap fix, saving the time and cost of taking parts to a shop for simple honing. Thanks Brush Research.

Easy to use.

Excellent product. Brush hones are a very good thing to have around and BRM makes about the best ones. The price on amazon is inline with just about everywhere else so cant complain there. I used this particular hone on a standard bore small block ford engine block to hone the cylinders before I installed the pistons and rings. The 180 grit has worked great for me with standard Iron piston rings. If youre using moly rings or something else, refer to the manufacturers recommendation when choosing grit size. I also like the brush hones because you can purchase one for less than a machine shop will charge you to hone your cylinders, and you can usually do more than one block with one. The last BRM hone I had did 5 small blocks and still has some life in it. Take that for what you will. Very good product at a very good price. Definitely recommend for your rebuild or re-ring project!

Great price, really a great price, compared to auto parts store in my area.

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

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).

Good Tool