Flap Disc of Alumium Oxide Description of Flap Disc Size: 100x16 115x22 125x22 150x22 180x22 Our flap discs are well manufactured by using high quality aluminum oxide cloth. The material is superior due to its uniform particle size and premium blend of ingredients. Flap discs, as an alternative to sanding discs, can be fitted onto an angle grinder without a backing pad. Feature of Flap Disc: Flap discs can remove material aggressively. Its removal power is equal to depressed cool center wheel but it is safer and can offer a better finished surface. The conical flap discs enable the fullest contact between work-piece and disc surface. With a light weight design to reduce operator fatigue, flap discs are easy to use and require very little surface pressure. Backing Type Fiberglass backing features: Lighter, quieter operation Will not splinter or smear on the workpiece Backing will wear uniformly with abrasive cloth Plastic backing features: Non-scratching, high strength backing Resistant to temperature extremes, common chemicals and solvents Conical shape features (type 29): Built-in angle for increased contact area Best for use on large, flat surfaces or complex work shapes Minimizes workpiece gouging More aggressive stock removal due to higher angle Flat shape features (type 27): Best for use on miter joints, corners and edges Best choice for finishing intricate and ornate surfaces More forgiving than conical shape As a world leading abrasive products manufacturer in China, White Horse Abrasives Co., Ltd can provide high quality grinding wheels, diamond blades, sanding disc and other abrasive products for our global customers.