Achieve cool, consistent cutting action with the Vitrium3® 86A AO surface grinding segment, which features a sharp aluminum oxide abrasive grain. Norton® strongest bond, the Vitrium 3 bond offers patented pore induced construction to produce burn free cutting on even the toughest super alloys. Designed for use with Hanchett Mattison Norton®, sterling, abrasive associates, cortland and cortland bonus grind machines, the Vitrium3® is a smart choice for stock removal at low, medium or high forces, as well as cylindrical grinding and surface grinding. Ideal for precision grinding on aerospace alloys, the Vitrium3® ensures outstanding corner and form holding.