Norton® Clipper® Classic™ 70184601579 R828 Arbor Thread Coated Abrasive Flap Disc, 4-1/2 in dia, P40 Grit, Extra Coarse Grade, Zirconia Alumina Abrasive, Type 27 Flat Disc

Flap discs are versatile grinding and finishing tools having four main components - abrasive flaps, flap density (how the flaps are stacked), backing plate (flat or conical shape), backing plate material (fiberglass/resin, plastic, aluminum). All flap discs have flaps that are overlapped and glued to the backing plate. The flaps wear during use exposing new abrasive grain. The different variations of the components above provide a variety of choices ranging from heavy stock removal to blending to finishing. Flap discs are designed for portable grinder applications and can be the preferred choice over depressed center wheels or fiber disc.

• Standard zirconia grain provides good cut and life for all purpose work
• Type 27 have a flat angle and are best used for finishing
• Fiberglass backing plates provide long life and aggressiveness
• Poly cotton backing for good cut rate and finishing