Makita Sub-Compact gives users 12V handling with 18V run time and compatibility with the world's largest 18V lithium-ion cordless tool system. The 18V LXT Sub-Compact Brushless 3/8” Square Drive Impact Wrench is ideal for working in tight spaces and for overhead applications. The XWT12Z has an efficient Makita BL Brushless Motor engineered for up to 50% longer run time, increased power and speed, and longer tool life. It has variable two-speed with 0-1,300/0-2,400 RPM and 0-2,000/0-3,600 IPM and up to 130 ft.lbs.of Max Torque.