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
  • joe l.

    Greater than one week

    If you know what this then you know what it’s supposed to do. This one do exactly that

  • Michael Beach

    > 3 day

    Does a beautiful job as advertised. No complaints on performance or price.

  • Justin

    > 3 day

    Exactly what I needed for 5.3 LS

  • Nunya

    Greater than one week

    I was worried about the size as the 3.78 inch bore of the 5.3 is on the edge of the range listed for this product. It did a great job and I was very happy with the results. I used motor oil as lubricant and did about 10 in out passes. Make sure to go slow on rpm and fast on the in out to try to get the 45 degree cross hatch.

  • Raheen T Frasier

    > 3 day

    Awesomeness

  • SPBoy

    Greater than one week

    Works great! Not as deep cutting as honing tool with stones. Used this as a starter and finisher. Leaves a great finish! I used this on my 2.5L Subaru

  • Connor

    > 3 day

    Used the 89mm size hone for my 84mm cylinders in my 52 motor and seemed to work good. Just lubed it up with some motor oil and followed instruction and the cross hatching seemed to come out really good, gotta speed it up on the last few strokes or else your cross hatches will not be close to 45 degrees which I found out quick enough.

  • Michael K.

    > 3 day

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

  • Lou S.

    > 3 day

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

  • Greg Lantz

    > 3 day

    Works perfectly

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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