Ryobi angle grinder 4 1/2 inch metal cutter - YouTube
RYOBI 3 in. Multi-Material Cut-Off Wheel Set (3-Pack) A7CW31 - The Home Depot
Ryobi P423 18V One+ Brushless 4-1/2" 10,400 RPM Grinder and Metal Cutter w/ Adjustable 3-Position Side Handle and Onboard Spanner Wrench (Battery Not Included, Power Tool Only) - Amazon.com
RYOBI ONE+ HP 18V Brushless Cordless Compact 1/4 in. Right Angle Die Grinder (Tool Only) w/ 2 in. Sanding Disc Set (16-Piece) PSBDG01B-A911601 - The Home Depot