Tiger Aluminum 4.5 inch conical flap discs leverage a paired flap design to deliver high performance grinding on aluminum. The top flaps are coated to eliminate loading and allow the disc to maintain a high cut-rate, while the alternating flaps aggressively remove material with self-sharpening zirconia aluminum grains. The combination delivers the ultimate combination of high performance grinding for aluminum at an exceptional value. _x000D_ _x000D_ The type 29 conical disc shape maximizes surface contact when grinding between 15° & 35° for aggressive stock removal on flat surfaces while 36 grit abrasive grain is best for beveling, chamfering, weld removal and stock removal with a right angle grinder.