













Brush Research GBD40024 FLEX-HONE, 4 (101mm) Diameter, 240 Grit, Silicon Carbide Abrasive (Pack of 1)
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tkirk
Greater than one weekI used these per ring manufacturer recommendation for grit. Worked perfect. Easy to use.
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Barry Woolf
Greater than one weekgreat hone I,ll use it for years !
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Zephrant
> 3 dayEasy enough to use, worked well. Easily completed a 307 V8 engine. Not sure how many more it could do, but no visible wear on it. Ill have to store it for decades before Im likely to use it again though.
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David Sanders
> 3 dayThese are the best brushes for honing your cylinder walls. I got nice 45 degree hone marks. It works VERY fast you put your drill on low speed and try to time it so you get the right degree of marks. It leaves a TON of residue so plan on power washing your block with cleaners. 3 to 5 passes is all it takes to clean up the walls. Remember you are removing glazing not boring your cylinder wall.
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William T. Woodring
> 3 dayWorked great, as expected.
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Jack
> 3 daySmooth
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mbc
> 3 daywhat a product, real good finishing hone.
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Shane Smith
> 3 dayWas as described
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Lou S.
> 3 dayawesome---cleaned up a 7 inch bore cylinder 10 feet long and shows little wear---highly recommend
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Mr. Griffin Roob DDS
> 3 dayse utilisa para pulir los cilintros de motores.