02 Ago Brush Research GB334320AO Flex-Hone®, 3-3/4″ (95mm) Diameter, 320 Grit
[320 GRIT ALUMINUM OXIDE ABRASIVE]-Excellent on Aluminum, Brass, Bronze, and softer non-ferrous materials. 240 AO is commonly used for deglazing Nikasil cylinders. [QUALITY]-Proudly Made in the USA....