Makita XWT04Z 18-Volt LXT Lithium-Ion 1/2-Inch High Torque Impact Wrench ( Tool Only, No Battery) - - Amazon.com
Makita 18V LXT Lithium-Ion Cordless 1/2 sq. in. Drive Impact Wrench Kit (3.0Ah), Makita-Built Motor, XWT041X at Tractor Supply Co.
388vf 520n.m Brushless Cordless Electric Impact Wrench 1/2 Inch Power Tools 15000mah Li Battery Compatible Makita 18v Battery - Electric Wrench - AliExpress