$63.99 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
MILWAUKEE 1/2 Cordless Impact Wrench Kit, 18.0 Voltage, 220 ft.-lb. Max. Torque, Battery 
