Vikky 16V 1/4" Hex Impact Screwdriver 2.0Ah cordless 3-speed torque adjustable electric driver with brushless motor providing powerful power. Suitable for DIY and home daily use - Amazon.com
BOSCH SBID32L 32 Piece Impact Tough Screwdriving Bit Set SBID32 - Amazon.com
Bosch 18-volt 1/4-in; 1/2-in Variable Speed Brushless Cordless Impact Driver (Bare Tool) in the Impact Drivers department at Lowes.com