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. [80 GRIT SILICON CARBIDE ABRASIVE]-Excellent on mild steel, stainless steel, cast iron and other softer ferrous materials. Typically achieves a finish of 45 - 64 Microinch (1.2 - 1.6 Micrometer). [WHAT'S INCLUDED]-1 Each of a BC Standard Duty FLEX-HONE: 0.197" (5mm) Bore Diameter, 1.50" Abrasive Part Length, 0.083" Shank Diameter, 8" Overall Length. For Use on Bore Diameters Between 0.188"-0.197". 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 : 80 Grit