• Highlight: MK Diamond MK-404 PW fine-grit cup wheel produces a smoother finish on concrete, marble, and granite edges.
• Best For: Stone fabricators easing edges and removing chatter marks; concrete polishers blending out coarser first-pass marks.
• Expert Note: 5/8"-11 nut threads onto right-angle grinders; pair after a coarse first-pass cup wheel to bring the surface polish-ready.