Crafted for fast cutting and long life, DeWALT-type 1 HP metal cutting wheels feature a thin 0.045 in wheel design for quick, burr-free cuts and a proprietary material mix for extended wheel life. Aluminum oxide grain delivers aggressive cutting action. 2 full sheets of fiberglass offer durability and safety. Thin 0.045 in wheel design for fast burr-free cutting. Thin 0.045 in wheel design for fast burr-free cutting. Proprietary material mix ensures durable long life wheels. Proprietary aluminum oxide grain combination for aggressive cutting action. 2 full sheets of thick fiberglass to withstand extreme applications and high-speed.