The Milwaukee M12 FUEL SURGE 1/4 in. Hex Hydraulic Driver is the industry's first 12-Volt hydraulic impact driver. Featuring the FLUID-DRIVE Hydraulic Powertrain, the hydraulic impact will allow users to experience operation up to 2X quieter with less vibration for smoother and faster driving speeds compared to standard impacts.
I work in the appliance repair industry and this impact driver is the best. I've had multiple types and brands over the last 8 years and this is by far the best for what I do.