2-1/2 inch 180-grit Flex-Hone for small engines with a steel/cast bore. This is a very popular hone for the piston ring set used in kart racing engines. Hone can be used in many other applications with a bore range of 2.50 +/- .100.

These hones remove minimal amounts of material and are used as final cylinder finish hones. Hones can be used as a cylinder prep (deglaze finish) during ring replacement. Hones are very simple to use and self-centering during operation.

Please feel free to contact us regarding the correct product and size for your application.

See our eBay guide for instruction on using Flex-Hone products and engine performance tips.