Lowes offers DEWALT 20-volt max 1/4-in Brushless Cordless Impact Driver for $99 (reg. $179) free shipping with Amazon Prime. 

Product Description:
The 20V MAX* Brushless Cordless 1/4-in Impact Driver is engineered to be lightweight and powerful without compromising performance. The brushless motor delivers up to 1,700 in-lb. of torque and up to 3,200 RPM for driving large-diameter screws. Maintain productivity in low-light spots with a 3-LED on-board work light that illuminates dimly lit workspaces.