The new and improved HP has set new industry benchmarks in general purpose grinding on steel. With an abrasive grain formula engineered for greater hardness and wear resistance, HP wheels remove metal faster and with less effort to provide one of the best overall values in grinding. Each wheel has a deeply anchored wrap-around steel hub for maximum safety and long life. Excellent for deburring, grinding welds, preparing weld edges and shaping. For use with steel. Package of 25.