Carborundum offers Good, Better, and Best product tiers of Type 27 and Type 28 depressed center wheels designed specifically for grinding using right angle grinders
Gold MaXX Zirconia Alumina/Aluminum Oxide Abrasive Blend depressed center wheels for grinding grind efficiently on a variety of ferrous metals: from carbon steel to stainless steels and some exotic metals. This product is part of the Carborundum BETTER product tier group.