Bosch 18-volt 1/4-in; 1/2-in Brushless Cordless Impact Driver (1-Battery Included, Charger Included and Soft Bag included) in the Impact Drivers department at Lowes.com
Milwaukee M18 18-Volt Lithium-Ion 1/4 In. Hex Impact Driver (Tool Only) - Gillman Home Center
Bosch® 18-Volt Cordless Compact 1/4" Impact Driver Kit at Menards®
Milwaukee M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 1/2 in. Hammer Drill/Driver and 4-1/2 in./5 in. Grinder w/Paddle Switch 2904-20-2880-20 - The Home Depot