Ryobi PSBDG01 18V Compact Brushless Right Angle Die Grinder
RYOBI ONE+ HP 18V Brushless Cordless 4-1/2 in. Angle Grinder with 2.0 Ah Battery and Charger PBLAG01B-PSK005 - 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 4-1/2 in. Angle Grinder Kit with 4.0 Ah HIGH PERFORMANCE Battery and Charger PBLAG01K1 - The Home Depot