Blue Star Diamond - Easy Edge Edge Ceramic Cup Wheel 7" - 400 Grit

- Larger 7" footprint for faster edge coverage — built with Blue Star Diamond Technology and a ceramic bond, the wider diameter removes material faster than the 5" version and is better suited to larger commercial slabs and walk-behind edge machines.

- Fine-grit refinement step — the 400 grit sits in the transitional polishing range, blending the edge perimeter seamlessly with the main floor and eliminating the scratches and gouging that metal-bond cup wheels leave behind.

- 5/8"-11 threaded mounting — fits walk-behind edge machines and 7"-rated hand grinders directly, with no adapter or backing pad required. Always verify your grinder's RPM against the maximum operating speed marked on the wheel — 7" wheels run at lower max RPM than 5" wheels.

- Cuts edgework time by up to 50% vs. metal-bond alternatives — the ceramic matrix removes the need for an extra pass to chase out scratches before the next grit, and the larger 7" diameter compounds the efficiency gain on long perimeter runs.

- Part of a complete edge polishing system — available in 30, 50, 100, 270, 400, and 800 grit in both 5" and 7" sizes, letting you build a full progression from aggressive cut to final polish using a single wheel format and mount.