The wide range Performance Line SG offers high-performance solutions for every application and material. Performance Line SG products achieve optimum results with excellent economic efficiency. For heavy-duty use in foundries and fettling shops, PFERD offers particularly robust grinding wheels that have maximum safety and achieve top performance, even under these conditions. They are optimized for use on compressed-air turbine and high-frequency angle grinders. Zirconia alumina grinding wheel designed for use on cast iron and steel in foundries and fettling shops. Excellent grinding performance and very good service life.