Abstract: A hand tool for installing clips to abutting edges of ducts and for crimping the clips to secure the ducts together is comprised of a rectangularly shaped base plate including pairs of opposed rollers mounted thereon with their axes perpendicular to the plate. A gap between the rollers is approximately the same size as the width of the combined edges being secured together. A raised pusher member pushes a clip which is resting on the plate into place and the same is crimped by the rollers when the tool is drawn back. A handle is located on the reverse side of the plate for manually moving the tool.