Saitech high performance ceramic aluminum oxide cutting wheels are designed to provide long life for fewer wheel changes and less downtime. Thin .045 width offers fast cutting and reinforced fiberglass layers provide the ultimate safety in a thin wheel. Unique Type 27/Type 42 shape can be used on all angle grinders in accordance with ANSI B7.1. Used for stainless steel, high tensile alloys, and ferrous or non-ferrous metals such as iron, steel, welds, etc. Package of 50.