Flap discs are versatile grinding and finishing tools, consisting of three main components: a backing plate, adhesive, and abrasive cloth flaps. The rectangular flaps are overlapped and glued to the backing plate. Flap discs are designed for right angle grinder applications ranging from heavy stock removal to surface blending

• Alternating aluminum oxide (green) and zirconia alumna (blue) flaps
• New resin system and Y-weight polyester flaps
• New grain coating
• Type 27 HD, fiberglass back
• Green, flexible plastic backing plate on type 27 quick trim
• Ideal when purchasing criteria is a good-performing, economically-priced, general purpose disc
• Improved base adhesion and 30%+ improvement in life over key competitor's aluminum oxide flap discs
• Stand up on light- to moderately demanding applications
• Longer life and faster cut rate
• High strength, lightweight and absorbs vibration
• New industry standard for trimmability
• Standard flap density
• Good tier

Norton® Neon R766 66623399004 Flap Disc, Type 27 Flat, Outer Diameter: 4-1/2 Inch, Arbor Hole / Thread Size: 7/8 Inch A.H., Grit: 40 (Coarse), Max Speed: 13300 Rpm, Abrasive Type: Zirconia Alumina/Aluminum Oxide, Backing: Plastic, Mounting: Arbor, Product / Materials Abraded: Aluminum, Brass, Bronze, Stainless, Carbon Steel And Titanium