- Premium Zirconia Alumina - Zirconia is harder with a longer lasting life than Aluminum;
- T29 Flap Disc - Larger surface contact and more efficient grinding. The fiberglass backing plate effectively absorbs vibrations;
- Wide Applications - Suitable for metals, wood, rust, paint, stainless steel, and plastics;
- Wide Application - Maximum speed of 18,000 RPM (>13,000 MAX RPM). Fits for most 4 1/2 Inch grinders.