F.E.P.A. - "Federation of European Producers of Abrasives." Normally used to describe a European grading system for abrasive grain to differentiate it from the US A.N.S.I. system. Products graded to the F.E.P.A. system have the letter "P" prior to the grit designation. Another grading system is C.A.M.I., which is, "Coated Abrasives Manufacturers Institute." A trade association composed of US coated abrasive manufacturers. This will not have a P in front of the grit.

The recommended abrasive varies depending on the material being sanded. For ALUMINUM, CAST IRON, CHROME, & STEEL the best product would be Alumina Zirconia for rough grinding and Aluminum Oxide for general purpose grinding and finishing. Silicon Carbide is sometimes used for final finishing. For WOOD the best product is Aluminum Oxide for general purpose sanding. Alumina Zirconia can be used for planing operations and Silicon Carbide is often used when working with particle board. For GRANITE or other stone material we recommend Silicon Carbide almost exclusively. Usually ground wet to reduce dust and eliminate burning.