Brush Research GBD40024 FLEX-HONE, 4 (101mm) Diameter, 240 Grit, Silicon Carbide Abrasive (Pack of 1)

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$49.37

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100 Ratings
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Reviews
  • Michael K.

    > 3 day

    Bought this to rebuild a LS 5.3L. 5 seconds in each hole on low speed. Perfection!

  • Gregory C.

    > 3 day

    Worked like a charm on my CJ5 with an AMC 401, look up on U tube for how to use it was very easy, and this hone is well made, my bore size is 4.195 hope this helps.

  • jeff beary

    > 3 day

    Bought this to rehone the 3.8 Buick cylinders after trying to use them old stone three arm hone devices. I have no idea why I ever thought that contraption would ever work. This thing is a beast. Takes seconds to use properly and I didnt have second thoughts about putting the crank back in and hooking up the Pistons. If you ever plan during your mid-life crisis that you must rebuild an engine, save yourself some time and get this and the next grit under and use these to perfectly hone your sbc or whatever man.

  • Jay P.

    > 3 day

    Worked great on refreshing crosshatch pattern on a 5.3 GM with 225k miles. Very effective with light effort.

  • Matthew Stubbe

    > 3 day

    Cleaned up my LS2 cylinders with ease. Get one, do it yourself.

  • Lydia Bauch

    Greater than one week

    Worked as expected

  • Jerry

    > 3 day

    Using the correct size on the cylinder size has provided a good result. Forced an oversized one once and did not yield an easy result.

  • Hunt’s Workshop

    > 3 day

    This was so easy and idiot-proof. Absolutely fantastic results!

  • Tom C

    > 3 day

    USED THIS FOR AN LS2 AND AN LS3. WORKED GREAT FOR BOTH. Some learning curve, but definitely adjust the crank as you go or you could slightly scuff it like I did. Not enough to cause a major issue, but did need to use 2000 grit sandpaper and wd40 to wet sand. thats user error. not the product.

  • ricardo

    > 3 day

    El producto está bien pero el reembolso tarda mucho dónde está mi dinero ya retorne el artículo.

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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