$59.99 Milwaukee M18 18-Volt 1/4 in. Cordless Hex Brushless Impact Driver Kit (Tool-Only)-2750-20 - The 
Rockwell 20-Volt Lithium-Ion 1/4 in. Hex Cordless Brushless Impact Driver-RK2868K2 - The Home Depot
DeWALT® DC827KL - 1/4 Drive 18V Heavy-Duty Impact Driver Kit with NANO Technology - TOOLSiD.com
