Excellent for surface preparation, conditioning and finishing
Tough non-woven disc aggressively deburrs and finishes
Open-web construction resists loading and runs cool, allowing for consistent finishes
Consistent, uniform finish without undercutting or damaging underlying surfaces
Suitable for weld line cleaning, blending of handling marks and scratches and deburring before paint
The advantages of Flap Discs are that the flaps each attack the surface at a slightly different angle, and this varies slightly with tool angle. This avoids the common problem with flat sheets, where they produce repeated identical scratches. Abrasive wear is distributed more evenly across the flaps, and through the length of each flap. Flaps wear from their outer ends and the sheet carrier cuts back as the abrasive coating is worn away. The wheel remains useful even as the flaps erode. Compared to flat sheets, that are discarded after only a small area of the abrasive is truly worn-out, this is a much more efficient use of the abrasive material.