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Standard Cylinder Bore Flex-Hones 3" and up

The GB Series Flex-Hone tools are designed for bore diameters from 3-1/4" thru 4-5/8" and are 13-1/2" OAL. These standard duty Flex-Hones tools are commonly used to finish and deglaze block cylinders or liners and represent a tremendous value on a cost per cylinder basis.

The Flex-HoneŽ tool is always used in an oversized condition. Our sizes are listed by the nominal bore in which the hone is intended to be used.
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