Abrasive disks for power-operated grinders; Abrasive wheels for power-operated grinders; Brushes and brush holders for use in rotating electrical machinery; Electric brushes being parts of machines; Flap discs for power-operated grinders; Grinding tools for grinding machines; Lapping machines for metalworking; Precision machine tools, namely, hard metal tools, high speed steel (HSS) tools, carbide tools, ceramic tools, poly crystalline diamond (PCD) tools, and diamond-coated and diamond-uncoa...