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Brush Research FLEX-HONE Cylinder Hone, GB Series, Silicon Carbide Abrasive, 4-1/8 (105 mm) Diameter, 240 Grit Size

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$36.37
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(10000 available )
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97 Ratings
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Reviews

  • zeek

    > 24 hour

    Used to clean surface rust from the inside of the stick cylinder on a case 580c. The rust was light so I needed a home that would not cut in to much and leave the bore rough. I used a 240 grit 4-1/8” diameter hone. The finish was not that rough but I probably should have moved up to the 320 grit.

  • S. Ziemba

    > 24 hour

    I bought this for my 1997 SeaDoo Speedster engine repair. I originally honed it with this but then found out I needed to get the cylinder bored over for other reasons. I took it into the machine shop and the machinist was in awe how amazing the cylinder looked he was wondering why I was even there. The cross hatch this tool leaves is second to none. This is a must have for anyone who regularly works on engines, but keep in mind these are fitted for specific size bores. If you just need one for a different size bore every time on new engines you work on, it might not be cost effective for you. For me, I would rather accumulate a whole set...so its all good for me.

  • Joseph vor

    > 24 hour

    Great tool, used this on a 305 chevy and made a excellent hone on each cylinder, even and consistent on each cylinder.

  • Rory Boehm

    > 24 hour

    Recieved way sooner than expected. Very happy. Thank you!

  • Darren M. Lyall

    > 24 hour

    Put a great cross hatch pattern in bores for new rings. the end is a littel trickey to center on drfill so pressure is the even throught the honing process. Make sure you line it up first before use ( very important).

  • TJ Bish

    > 24 hour

    It worked well for my SBC. I thought it should last longer than 1 V8 engine honing. Maybe its not supposed to, I dont know when I was done I noticed the dingle balls were smoothe.

  • June Runte

    > 24 hour

    Worked wonders!!

  • Mike G

    > 24 hour

    Did a quick hone of the cylinder walls while refreshing the engine over the winter, Bore size on my motor was 4.030

  • Russell Williams

    > 24 hour

    This flex hone worked well for aircraft cylinder engine cylinder finish, and honing out some scratches and score marks. Well packaged and appeared to be well made.

  • Jason R Dragun

    > 24 hour

    Works excellent may seem to big or tight but its supposed be that this is for a 3in cylinder bore

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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