Snap-On 18 Volt Lithium Cordless Impact Wrench Kit, 1/2 Drive, Part #CT8850O - Amazon.com
Aiment Cordless Impact Wrench 1/2 inch, 550 Ft-lbs Max Torque(700NM), 21V 3000RPM Brushless Power Impact Gun, 4.0Ah Li-ion Battery with Fast Charger, 6Pcs Sockets, Electric Impact Driver for Car Home - Amazon.com
You Need an Impact Gun in Your Toolbox
New Snap-On 1/2 Brushless Cordless Impact Worth all the Hype? - YouTube