7" Cup Wheel, Lightning, Medium Bond 30 Grit Metal Bond and prevents the PCDs from

and prevents the PCDs from biting too deeply into the concrete underneath

- Engineered for hard to very hard concrete (Mohs 8+) — Bartell uses a simplified 3-color bond system distinct from the Lavina/Elite scheme: Purple for soft to medium concrete

- Aggressive Mortar Removal Performance – Engineered specifically for tuckpointing

If the segments are wearing down visibly fast or leaving inconsistent scratch patterns

7" Cup Wheel, Lightning, Medium Bond 30 Grit Metal Bond and prevents the PCDs fromAggressive metal bond diamond cup wheel for 7" hand grinders designed for fast stock removal on concrete and masonry. The 30 grit metal bonded diamonds tear through epoxy, paint, glue, mastic, and surface deformities efficiently, making this a go to choice for coating removal and slab prep before refinement. Lightning segment geometry for aggressive cut with debris clearance the lightning bolt shaped segments combine multiple angled leading edges