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
  • Vintage Motorcycle Repair

    > 3 day

    I have six of these now, and I buy a new one if I need a size I dont have. They work perfectly to take the glaze off of a motorcycle cylinder before installing a new piston and/or rings. They are sturdy, and last a very long time if treated well. Pro Tip: Dip them in transmission fluid before honing.

  • Muscle Car Builder

    > 3 day

    Great

  • Muscle Car Builder

    > 3 day

    Great

  • Jose Velez

    > 3 day

    Did 2 passes with the 240grit on a RM250 cylinder and it came out beautiful , real smooth

  • carpenter

    Greater than one week

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

  • brandon

    > 3 day

    Perfect product, great description about getting the right size for my cylinder. Thanks

  • Parke R Brown

    > 3 day

    Got it fast and item as described. Love it.

  • Mr. Terrance Keebler

    > 3 day

    Ive used these dingo-ball-hones in the past, and they work as well now as they ever did. This go-round was for a dirtbike cylinder, and the hone fit nicely, and cleaned up the bore to put a cross-hatch pattern into it. This ought to let the rings seat well when I finish the assembly. Watch some youtube videos if you need a tutorial, lots of them out there.

  • Parke R Brown

    > 3 day

    Got it fast and item as described. Love it.

  • Leonard P.

    > 3 day

    I was putting in new rings, but had a glaze on the cylinder bore. this quickly removed the glaze and will allow the new rings to seat properly.

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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