Blue Star Diamond - Easy Edge Edge Ceramic Cup Wheel 7" - 30 Grit

- Most aggressive grit in the 7" Easy Edge family — built with Blue Star Diamond Technology and a ceramic bond, the wider 7" diameter compounds the cutting power and is ideal for fast removal on large commercial slabs and walk-behind edge machines.

- The starting point in an edge polishing sequence — contractor reviews recommend a 30 → 50 → 100 progression on hard concrete. Skip straight to 100 only on softer slabs; on harder mixes, the 50-grit step is needed to blend out the 30-grit cut.

- Cuts almost as aggressively as a metal-bond cup wheel without the glazing and gouging — as long as the wheel is kept level, it removes serious scratches and tough coatings while leaving an edge that blends cleanly with the main floor.

- 5/8"-11 threaded mounting — fits walk-behind edge machines and 7"-rated hand grinders directly, in both wet and dry conditions. 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.

- Best alternative to a traditional metal-bond cup for prep work — handles aggressive removal on most jobs, though contractors note that on extremely hard troweled concrete a metal cup wheel may still be needed for efficiency on the very first pass.