DIABLO 4-1/2 in. x 0.040 in. x 7/8 in. Thin Kerf Metal Cut-Off Disc DBD045040101F - The Home Depot

The 11 Amp 4-1/2 in. Small Angle Grinder (Paddle, Lock-On) delivers up to 3-times more durability and up to 50% more power than the competition. With a 1,400 MWO motor that powers through the toughest jobs, the 6146-30 is the perfect match for industrial users. Milwaukee's Electronic Advantage includes Overload Protection to maximize motor life, an Electronic Clutch that extends tool life and helps prevent bind-up, Line Lock-Out that prevents automatic start-up after power loss and Soft Start. Featuring a 100% tool-free design, this Grinder allows the user to change all accessories, including hubbed product, without a wrench. In addition, the tool-free, burst resistant, adjustable guard allows users to make quick guard installations and adjustments