This Greenworks 24V 1/4" impact driver is packed with power and performance, delivering 1900 in./lbs of torque. Variable speed trigger allows you to control the amount of power to the desired level. The premium brushless motor allows for higher efficiency, longer runtimes, and extended motor life. The included Greenworks 24V Lithium-ion battery powers 100+ tools. The 24V battery delivers fade-free power with no memory loss after charging, providing 20% more power and 35% longer run-time than others on the market.