7" Ceramic Cup Wheel 50 Grit

- Ceramic-bond diamond cup wheel for aggressive edge prep — built on a 7" cup format for use with 7"-rated hand grinders and walk-behind edge machines. The ceramic bond cuts aggressively without the glazing and deep gouging that metal-bond cup wheels leave behind, blending the edge perimeter cleanly with the main floor and eliminating extra scratch-chasing passes.

- Coarse-grit cutting step in the edge polishing sequence — the 50 grit fills the gap between heavy 30-grit removal and 100-grit refinement. Contractors typically recommend a 30 → 50 → 100 progression on harder concrete to avoid leaving deep scratches that finer grits can't blend out.

- Larger 7" footprint for faster edge coverage — the wider diameter removes material faster than the 5" version of the same wheel, making it the preferred choice on larger commercial slabs and longer perimeter runs. The trade-off is a lower maximum operating RPM, so always verify your grinder's rated speed against the max RPM marked on the wheel.

- 5/8"-11 threaded mounting for direct grinder fit — installs on most 7"-rated hand grinders and walk-behind edgers without an adapter, flange, or backing pad. Suitable for both wet and dry grinding conditions, though dust shrouds plus a HEPA vacuum are required for indoor work under OSHA silica standard 29 CFR 1926.1153.

- Part of a complete edge polishing system — pairs with coarser ceramic cup wheels (30 grit) and finer ones (100, 270, 400, 800 grit) to build a full edge progression that matches the main-floor polishing sequence. Choosing all ceramic-bond wheels for the edge avoids the scratch-chasing that happens when mixing metal-bond and ceramic-bond tooling in the same job.