Diamond Bead Cup Wheels | Fast Concrete Grinding & Coating Removal

Supreme Diamond Tools’ Diamond Bead Cup Wheels combine innovation and durability to deliver superior grinding performance. Replacing conventional diamond segments with diamond beads, these cup wheels afford faster grinding speed, reduced friction heat, and smoother finishes across a variety of heavy-duty applications.

Key Features & Benefits

• Diamond Bead Technology – Instead of using standard segment blocks, beads provide more continuous exposure of diamond cutting surfaces. This design improves cutting efficiency, speeds stock removal, and helps maintain performance over time.

• Aggressive Cutting & Long Life – Premium-grade diamond concentration paired with a durable metallic bond ensures the beads remain sharp and productive, even under demanding use (concrete, mortar, epoxies).

• Precision Balancing & Vibration Control – Each wheel is carefully balanced to reduce vibration, increasing operator comfort, extending tool life, and improving finish quality.

• Versatile Application – Wet or Dry – The wheel can be used in both wet grinding (for cooling, reduced dust) and dry grinding (when water is not practical), depending on job site conditions.

• Multiple Sizes & Arbor Options – Available in 4", 4.5", 5", 7" diameters. Compatible with common arbor thread sizes (5/8"-11 and 7/8"-5/8"), making them adaptable to many angle grinders and surface prep machines.

Ideal Use Cases

• Grinding concrete slabs to remove high spots or unevenness

• Removing coatings: epoxies, mastics, adhesives, paint

• Smoothing and shaping masonry, stone, and mortar joints

• Surface preparation before overlay, tile setting, or polishing

• Edge blending and finish work where a smoother but still aggressive tool is needed

Technical Considerations & Tips

• Bond Hardness Matching: Harder materials (dense concrete, granite, etc.) benefit from softer bond to help expose fresh diamonds. Softer materials or masonry might require a harder bond. (As found in industry guides) Benchmark Abrasives+2bedrocksupplies.com+2

• Segment / Bead Count & Pattern: Higher bead count or closely spaced beads typically improve smoothness; fewer beads or more aggressive spacing help with bulk material removal.

• Grit Size: Coarser grit (lower number) for aggressive grinding; finer grit for smoother finishes or less material removal. Adjust grit and bond according to the finish required. Benchmark Abrasives+1

• Cooling / Dust Control: Use water when possible on large or continuous jobs to manage heat and extend wheel life. Dry grinding generates dust—dust collection or protective gear is essential.

• Safety: Proper PPE (respirator, eye protection, hearing protection) plus secure mounting, correct RPM, and avoiding tilting the wheel to prevent uneven wear or dangerous kickback.

⚙️ Specification Snapshot