20x 4.5" Flap Grinding Wheels 4-1/2 x7/8" 40 60 80 120 Grit Grinder Sanding Disc

👍About the Structure of SATC Flap Disc: 72pcs small 24x18mm cloth backing aluminum oxide sanding discs are bonded tightly on the plate. The plate is constructed from 8 layers of fiberglass mesh and one layer of non-woven cloth. Metal rings are embedded on 2 sides. This stable structure confirms a 30% longer life span than conventional flap discs 👍Aluminum Oxide Abrasive, Closed Coat: Aluminum oxide mineral features sharp. Closed coat resists loading. The 72pcs closed coated aluminum oxide large, thick discs overlaps which confirms to curved irregulars surfaces, resulting in a consistent finish 👍Strong X-wt Polyester Cotton Backing: Offering flexibility and stability for the thicker cloth configuration. 👍Fiberglass Backing Plate: Thanks to the high quality special structure of 8-layer fiberglass mesh screen. This reinforced fiberglass backing plate features extra strength, light weight, ability to absorb vibration, and operating comfort 👍Resin Over Resin Bonding: High strength resin over resin bond system provides superior grain support, resist heat and humidity for longer life than usual resin over glue bond. More adhesive added to bond the small discs to the plate tightly to resist discs flying off when operating which helps achieving longer lifespan and ensuring security 👍Type 27 Shape: These T27 flap discs work best from a 0~15 angle and are the best suitable for smooth finishing. The flat-angled discs are primarily used on flatter surfaces. Specifications Color: Maroon Dimension: 4.5 in Arbor Hole: 7/8 in Abrasive Material: Aluminum Oxide Coat Type: Closed Coat Backing Material: X-Weight Polyester Cotten Plate Material: Fiberglass Bond: Resin over Resin Max Operating Speed RPM: 13,300 Grade: Extra Coarse/Coarse/Coarse/Medium Grit: 40/60/80/120 Applications: Weld Removal, Deburring, Smoothing, Blending Works Well On: General Metals, Carbon Steel, Alloy Steel, Stainless Steel, Cast Iron, Non-Ferrous Metals, etc. Machine: Right Angle Grinder Package Included 10 x 4.5 in Aluminum Oxide T27 Flap Discs Grit 40 5 x 4.5 in Aluminum Oxide T27 Flap Discs Grit 60 3 x 4.5 in Aluminum Oxide T27 Flap Discs Grit 80 2 x 4.5 in Aluminum Oxide T27 Flap Discs Grit 120 20 pieces in total