Abstract: A drywall installation tool. The present drywall installation tool is specifically adapted for evenly applying drywall mud and drywall tape in corners between adjoining sections of drywall. The present tool includes a pair of hingedly connected blades that each have a scraping member for smoothing drywall mud or drywall tape as the tool is drawn over the sections of drywall and one or more rollers. The tool further includes an adjustment mechanism configured to adjust the angle between the blades, thereby allowing the present tool to accommodate corners of any angle. The tool further includes a receptacle into which drywall mud or other tape can be placed that is in fluid communication with the exterior surface of the head of the tool, thereby dispensing any material therein as the head is drawn over a surface. Furthermore, a handle is pivotably connectable to the tool head.