About This PERFORMANCE:Flap disc's premium Zirconia Alumina abrasive features: durable, good abrasion resistance, anti-clogging.Perform best between 50-80 m/s ANGLED GRINDING:Dish type 29 aims for angled surface, which allows grinding at 15-25 degree angles.Also.fiberglass backing plate effectively absorbs vibrations without smear during usage, bring more stable & efficient grinding WILD USES:4.5 flap disc is widely applied for rust, paint, ferrous metals, stainless steel, non-ferrous metals, wood and plastics.60 Grit is suitable for Deburring/Deflashing PERFECT FIT:4 1/2 flap disc fits most common 4.5” angle grinders, like DEWALT DCG414B,Makita 9557PBX1, Bosch 1375A, GWS8-45, PORTER-CABLE PC60TAG,Black & Decker BDEG400 and so on Overview Grit Material : Zirconia Product Dimensions : 4.5"L x 4.5"W Brand : S SATC Compatible Devices : Angle Grinder Grit Type : Fine