RYOBI 18-Volt Brushless 4-1/2 in. Cut-Off Tool/Angle Grinder Kit with Battery and Charger, (Non-Retail Packaging, Bulk Packaged) - Amazon.com
18V ONE+ HP Brushless 4-1/2" Angle... - RYOBI Tools
Ryobi AG454 7.5 Amp 4.5 in. Corded Angle Grinder – NT Electronics LLC
Ryobi 5133002497 RAG1010-125SF Angle grinder 125 mm 1010 Watt
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 PSBDG01 18V Compact Brushless Right Angle Die Grinder