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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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Reviews

  • Hailie Bernier

    > 3 day

    Good tool

  • Paul H. Shimek

    > 3 day

    I appreciate Amazon providing this tool. Not easy to find and a must have for engine rebuilding.

  • Bob F.

    > 3 day

    Great for refreshing any EJ25, they have a 99.5MM or 3.91 inch bore for the 4 inch hone works great for them. I have done 2 of them now, put the drill on low speed and squirt oil on them as you go will give good results.

  • Barry Woolf

    > 3 day

    great hone I,ll use it for years !

  • robin cupi

    > 3 day

    Perfect

  • Colin

    > 3 day

    Works as described. Super tight fit. Works best with someone to hold the block youre working with.

  • Bradley Dockery

    > 3 day

    Awesome bead hone

  • RandyO

    > 3 day

    Is and has always been a good product..

  • JimmyM

    > 3 day

    These ball hones are just right for a quick pass or two without removing too much material. Take care using them and it will last longer. Dont run them past the bottom of the bore or allow them to pop out the top during use. Check your speed and a nice cross hatch pattern is easy to achieve. I used the companion honing oil, pricey but easy clean up make it worth the money.

  • Scott rose

    > 3 day

    They work great as usual

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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