Achieve precise surface flat grinding and keen edge resharpening on cutting tools, dies, and machine components with industrial-grade Cup Grinding Wheels (straight and tapered abrasive cup wheels / Type 6 & Type 11 wheels). Formulated with high-purity aluminum oxide or silicon carbide grains bound in a rigid vitrified matrix, these cup-shaped grinding wheels feature a flat face and side rim profile. Designed for surface grinders, tool-and-cutter grinding machines, and bench grinders, they provide consistent contact area, effective stock removal, and fine surface finishes without thermal burning on hardened tool steels.