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

(0 Reviews)

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$36.37

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(10000 available )

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97 Ratings
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Reviews
  • Alessandra Langworth

    > 24 hour

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

  • Russell Williams

    > 24 hour

    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.

  • Robert L. Queberg

    > 24 hour

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

  • Mak82k

    > 24 hour

    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.

  • Nicolas H.

    > 24 hour

    Easy to use.

  • BT8850

    > 24 hour

    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!

  • Adan

    > 24 hour

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

  • JOSEPH KOPF

    > 24 hour

    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

  • mycreativename

    > 24 hour

    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).

  • Tom Estep

    > 24 hour

    Good Tool

The Flex-Hone® tool was originally created by Brush Research Manufacturing to deglaze cylinder walls in automotive applications. Brush Research embraced the benefits of a plateau finish and pioneered the concept of plateau honing culminating in the introduction of the Flex-Hone tool in 1972. The Flex-Hone has gained many nicknames over the years and including ball hone, ball style hone, flexihone, dingleberry hone, bead brush, glaze breaker and glaze buster. Flexible honing with the Flex-Hone tool produces an oil holding cross hatch pattern and a true plateau finish free of cut, torn and folded metal. Any type or size of cylinder can benefit from the Flex-Hone®. These abrasive bead style brushes are produced in standard diameters from 4mm to 36 inches. Nine abrasive types are offered including silicon carbide, aluminum oxide, boron carbide and diamond allowing the tool to be tailored to finish any base material. A choice of 11 different grit selections are available for precise control of finish parameters. The elimination of peaks results in rapid ring seating, better oil control, reduced seepage in hydraulic and pneumatic applications and provides better seal performance and longer seal life. Successful applications include firearm chambers, shotgun barrels, musical instruments, combustion chambers, air compressors, pumps, valve bodies, valve guides, brake cylinders, wheel cylinders and the list goes on and on. Flex-Hone® tools are also very effective for deburring cross drilled holes, port radiusing and edge blending. Because of its unique construction, the Flex-Hone is self-centering, self-aligning, and self-compensating for wear so it does not require an elaborate set-up or special training. Deburring can be effectively automated and combined in the machining process to allow a complete cylinder finish in one operation or it can be employed as a secondary operation with equal results.

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