Abstract: Abrasive articles, such as finger nail files, are made by stamping a metal sheet to form a blank with a header strip having a plurality of spaced fingers depending therefrom, coating the fingers with a slurry of abrasive granules and flowable plastics material adhesive, curing the coating to anchor the abrasive particles to the fingers, vacuum depositing a thin strike coating of copper or copper alloy over the cured resin coating and then electro depositing a coating of nickel over the vacuum deposited copper. The abrasive granules are preferably aluminum oxide, the resin carrier for the granules is preferably an epoxide thermosetting resin, and the metal coatings are controlled to form thin sheaths around the resin coating leaving the peaks of the abrasive granules exposed or only covered with very thin coatings which break off or wear away when subjected to friction.

Abstract: Nail files and other abrasive articles have a structural base, such as a steel strip, coated with a slurry of a resin, such as an epoxide, and abrasive particles or grits, such as aluminum oxide, granules with sharp peaks and corners, of selected size and covered with one or more layers of electroplated metal, such as copper, nickel and chromium, forming a sheath surrounding the coated base and firmly anchoring the particles around the base. The electroplated metal has relatively thick valley portions covering the bases of the particles but only has relatively thin films over the peaks of the particles. In use, the thin coatings over the peaks of the particles are broken off, exposing the tip ends of the abrasive particles for effective abrasion of surfaces, such as fingernails, rubbed thereover.

Abstract: Nail files and other abrasive articles have a structural base, such as a steel strip, coated with a slurry of a resin, such as an epoxide, and abrasive particles or grits, such as aluminum oxide, granules with sharp peaks and corners, of selected size and covered with one or more layers of electroplated metal, such as copper, nickel and chromium, forming a sheath surrounding the coated base and firmly anchoring the particles around the base. The electroplated metal has relative thick valley portions covering the bases of the particles but only has relatively thin films over the peaks of the particles. In use, the thin coatings over the peaks of the particles are broken off, exposing the tip ends of the abrasive particles for effective abrasion of surfaces, such as fingernails, rubbed thereover.