Saint-Gobain Abrasives offers its new Norton QUANTUM3 combination Wheels addition to the recently introduced Norton QUANTUM3 (NQ3) line of depressed-center grinding wheels. In comparison tests, NQ3 combo wheels have several key benefits over competitive wheels. NQ3 Combo Wheels have 50 percent longer life, which significantly reduces the need for wheel changes and results in decreased production downtime and less labor cost. Due to more efficient and faster cutting and grinding capabilities, the new combo wheels increase productivity by 15 percent over competitive wheels, so users can finish more pieces in less time, according to the company.