The Milwaukee 2760-20 M18 FUEL SURGE 1/4" Hex Hydraulic Driver is an impact driver tool designed for use with lithium-ion batteries, specifically 18V batteries. This brushless motor tool features a compact design and a keyless chuck size of 1/4 inch. With a manufacturer warranty of 5 years, the Milwaukee 2760-20 M18 is a reliable and efficient tool for various home and workshop projects.