7" Cup Wheel, Double Row, Medium Bond 30 Grit

- Aggressive metal-bond diamond cup wheel for 7" hand grinders — designed for fast stock removal, coating removal, leveling high spots, and general concrete prep with a 7" angle grinder. The 30-grit metal-bonded diamonds tear through epoxy, mastic, paint, glue, and surface deformities aggressively, leaving a deep scratch pattern that calls for follow-up finer grits before coating or polishing.

- Double-row segment design for fast cutting and balance — two parallel rows of diamond segments around the cup, typically 20–24 segments total. The double-row layout doubles the contact patch versus single-row turbo wheels, delivering steadier cutting on uneven slabs and better balance at speed. Cooling holes between segments aid dust evacuation and heat management.

- Medium bond for the most common concrete hardness — medium bond is balanced for typical commercial and residential slabs (3,000–5,000 PSI, Mohs 5–6) — the default choice when slab hardness is unknown. On much softer concrete, the medium bond will wear out faster; on much harder concrete, it may glaze and lose cutting action. Run a Mohs scratch test if slab hardness is in question.

- 5/8"-11 threaded arbor for direct grinder mounting — fits any 7" hand grinder with a 5/8"-11 threaded spindle, no flange or backing pad required. Maximum operating RPM is typically 8,000–8,600; always verify the wheel's stamped max RPM against your grinder's rated speed before use. Suitable for wet or dry grinding, though dust shrouds plus HEPA vacuum are required for indoor work under OSHA silica standard 29 CFR 1926.1153.

- Distinct from ceramic-bond cup wheels — metal-bond double-row cups like this one cut more aggressively than ceramic-bond wheels (e.g., the Blue Star Easy Edge family) but leave a deeper scratch pattern that needs more refinement passes afterward. Choose metal bond for raw stock removal and coating strip; choose ceramic for smoother edgework that blends into a polished main floor.