Abstract: A glazing tool for providing a smooth and uniform bead of putty between a window pane and a window frame formed of a block suitable to be held in the hand of a user. The tool includes a bottom plate which forms a work surface to smooth the putty. A guide bar positioned at the bottom plate is adjustable along the surface of the bottom plate. The guide bar is adapted to engage the edge of a window frame while the other end of the bottom plate slides along the glass to insure the angle of the tool is maintained as a bead of putty is formed.