DEWALT 20-Volt MAX XR Lithium-Ion Cordless Brushless 1/4 in. Impact Driver, 2 Batteries 4 Ah, Charger, and Free Impact Driver-DCF887M2W887B - The Home Depot
YMMV - Free Dewalt 20V Brushless Impact Wrench DCF894B with purchase of Dewalt 4AH battery 2-pack