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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(30000 available )

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100 Ratings
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Reviews
  • BlueBird

    > 3 day

    Hubby says this is a great tool in his engine rebuild.

  • Jim McGreevy

    > 3 day

    Good tool for my VW 1600 rebuild! Took practice on an old detonated cylinder to get cross hatch just right. Practice first and use oil! Itll do the job quick and well.

  • Erik P.

    > 3 day

    Excellent item for the price.

  • Ke-in

    > 3 day

    Great price and worked better than stone style honing tool.

  • 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.

  • Gerald Blair

    > 3 day

    Technique for a ball hone is easily found online but it would have been reassuring to have the instructions directly from manufacturer. It worked as I expected and should last a long time.

  • tkirk

    Greater than one week

    I used these per ring manufacturer recommendation for grit. Worked perfect. Easy to use.

  • Lou S.

    > 3 day

    awesome---cleaned up a 7 inch bore cylinder 10 feet long and shows little wear---highly recommend

  • cj little

    > 3 day

    I used this hone on a BMW M20 rebuild out of a mid-80s E30. The hone worked perfectly. I first used the hone with an old 9.6V Makita cordless drill that, sadly, didnt make enough torque to get the job done right. I went out and bought a 6.5 amp Porter Cable 1/2 chuck drill and it cleaned up the cylinders perfectly. Note: if the hone starts to bind a bit, do your best to _not_ stop the drill from spinning. I learned (the hard way) that if the hone stops, and you (in your infinite wisdom, like myself) try to reverse the hone out, the metal braids that hold the hone balls in place will unravel. Youll spend more time than you car too putting the hone back together again (with or without all the kings men). Even though there is still life in the first hone I used, I ordered another one just to have on hand. Thats how much I liked this hone.

  • RDC

    Greater than one week

    Nice brush home all arrived in tact and ready to use

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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