●Benchmark Abrasives 4.5" x 7/8" T27 flap disc is ideal for sanding, grinding, deburring, finishing, etc. on cast iron, steel, stainless steel, titanium, fiberglass, wood, and more. ●Ceramic flap discs are manufactured using European zirconia cloth. It is designed with ceramic grains resin bonded to high-strength polyester flaps adhered to a fiberglass backing plate. ●Designed to meet industrial standards, our high-quality flap discs are recommended to be used with angle grinders sized 4-1/2” to 5“. These Type 27 flap discs are versatile products that can be used for aggressive stock removal to surface blending. ●Efficient aluminum flap wheels are used in various industries like automotive, household, transportation, mining, shipbuilding, foundries, construction, fabrication, etc. ●All our abrasive products are made with quality materials and exceed ANSI and EU European Standards. We trust in delivering high-quality products to the end-user. Customer satisfaction is the lifeline of our brand.