Thumb Score: +17 Home Depot has RYOBI ONE+ 18V Cordless 4-1/2 in. Angle Grinder on sale for $29.97. Shipping is free or select free ship-to-store where available. Thanks to Community Member Totspurs for finding this deal. Note: The title indicates a kit w/ battery, however this is likely a listing error and you will only receive the tool only.