Brush Research FLEX-HONE Cylinder Hone, BC Series, Silicon Carbide Abrasive, 3 (76 mm) Diameter, 240 Grit Size

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$6.78

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(50000 available )

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132 Ratings
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Reviews
  • Vern Trent

    > 24 hour

    Quickly gets the job done It was easy to get cross hatching

  • Muscle Car Builder

    > 24 hour

    Great

  • carpenter

    > 24 hour

    These are very easy to use Time will tell how long they last

  • Joe A.

    > 24 hour

    I used this on my 2004 Tacoma when putting in new leaf springs. I needed to clean and grind down a lot of rust on the inside of the shackle that the leaf spring bolt attaches to. This fit, and worked, perfectly! I went a few sizes up on the diameter of the hone versus the hole to be honed so there would be some additional friction and I could get it as smooth as possible. Attached it to my handle held drill and went to town. Would definitely order it again if I needed it!

  • R&D Hitz

    > 24 hour

    Used the 3” 240 grit. Did an amazing job on the steel sleeves in this machine for a set of SPI pistons. Compression and performance are still spot on after 800 miles of use. Definitely would recommend.

  • dh

    > 24 hour

    East to use great tool for the price.

  • Doug Hopkins

    > 24 hour

    Worked great

  • Mike

    > 24 hour

    Purchased 76mm for honing an old ATV cylinder. Some WD40 and several passes later the bore is cleaned up and has a nice surface for the new piston rings to seal in. Cleanup is easy with carb or brake cleaner. Make sure to get the right size hone for your bore!

  • michael h.

    > 24 hour

    There was nothing to dislike safe and easy to use takes guesswork out of cylinder honing

  • Tom

    > 24 hour

    I have personally relied on products from this company for a very long time in a professional setting. As far as ball Hones go Flex-Hone is the best and has been. The quality is top notch and the number of sizes they make are unequalled by any other company

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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