An improved drywall finishing tool and method for using the tool. The drywall finishing tool includes a rigid body portion having a first section, a second section, and a smoothly curved center section. An inlet port is provided on one side thereof adjacent the center section. There are one or more cavities in the first and second sections. The one or more cavities are in fluid flow communication with the inlet port. First and second smoothing blades are attached on a first end of the first and second sections of the body portion. A removable cap is attached to the center section on a first end thereof. A removable cover is attached to the center section on a second end opposite the first end. The tool is specifically adapted for disposing and smoothing drywall compound between adjacent drywall panels to provide a smoothly curved inside corner between the drywall panels.