About This [QUALITY]-Proudly Made in the USA. Quality and consistency you can count on made from the inventors and makers of the tool. [DESIGN]-The FLEX-HONE is intentionally manufactured oversized. This engineered oversize creates the optimal amount of pressure inside the cylinder wall allowing the tool to be self-centering, self-aligning and self-compensating for wear and easy use. [FINISHING BENEFITS]-Offered in a wide variety of grits to achieve specific finishing tolerances as well as a beautiful crosshatch finish. Ideal for rebuilding hydraulic and pneumatic cylinders, engine and brake cylinders, valve guides, pumps, compressors and more. [CROSSHOLE DEBURRING]-Accomplish finishing and deburring simultaneously in a single setup. Can be used in virtually any rotating spindle from a hand drill, drill press or CNC equipment. [800 GRIT SILICON CARBIDE ABRASIVE]-Excellent on mild steel, stainless steel, cast iron and other softer ferrous materials. Typically achieves a finish of 3 - 10 Microinch (.05 - .2 Micrometer). [WHAT'S INCLUDED]-1 Each of a BC Standard Duty FLEX-HONE: 1.125" (28.6mm) Bore Diameter, 3" Abrasive Part Length, 0.245" Shank Diameter, 8" Overall Length. For Use on Bore Diameters Between 1.001"-1.125". PLEASE NOTE: ORDER BY BORE SIZE. Overview Material : Silicon Carbide Brand : Flex-Hone Grit Material : Silicon Carbide Bristle Type : Abrasive Globule Bonded To Flexible Nylon Filament Grit Type : 800 Grit