Busch Pink Abrasives are made from high-grade corundum (aluminum oxide) and are designed for shaping and grinding medium to hard metal alloys. This abrasive has a 2.35mm shank that will fit most pendant drills and micromotors. This Busch Pink Abrasive has medium grits and the bonding is medium, this allows this abrasive to remove metal quickly and effectively and also texture the piece.