DeWALT 20V MAX Grinder Unbox and Field Test - DCG412B - YouTube
Dewalt DCG412B 20V MAX Lithium Ion 4-1/2" grinder (Tool Only) with 4-Inch by 0.045-Inch Metal and Stainless Cutting Wheel, 5/8-Inch Arbor, 5-Pack - - Amazon.com
DeWALT DCG412B 20V 5 Inch Cordless Lithium-Ion Grinder - Bare Tool – MaxTool