$68.99 Metabo 18V 1/2 Brushless Cordless Impact Wrench Skin - SSW18LTX400BLSK - TradeTools | Huge 
Ryobi 18-Volt ONE+ 3-Speed Lithium-Ion 1/2 in. Cordless Impact Wrench Kit-P1830 - The Home Depot
PORTER-CABLE 20-Volt Max 1/2-in Drive Cordless Impact Wrench (1-Battery Included) at Lowes.com
