$61.99 PORTER-CABLE 20-Volt Max 1/2-in Drive Cordless Impact Wrench (1-Battery Included) at Lowes.com
Cordless 1/2-inch Impact Wrench,20-Volt (Battery Not Included) - Walmart.com
Ingersoll Rand 1/2 20V Cordless Impact, 2 Battery Kit, W7152-K22, (2) Battery Kit: Amazon.ca 
