[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. [240 GRIT ALUMINUM OXIDE ABRASIVE]-Excellent on Aluminum, Brass, Bronze, and softer non-ferrous materials. 240 AO is commonly used for deglazing Nikasil cylinders. Typically achieves a finish of 24 - 32 Microinch (.6 - .8 Micrometer). [WHAT'S INCLUDED]-1 Each of a BC Standard Duty FLEX-HONE: 0.375" (9.5mm) Bore Diameter, 2" Abrasive Part Length, 0.140" Shank Diameter, 8" Overall Length. For Use on Bore Diameters Between 0.355"-0.374". PLEASE NOTE: ORDER BY BORE SIZE.