The OTC 898A, often the biggest time-consuming part of dent removal is the removal and installation of interior panels and upholstery. This tool eliminates those steps. Simply drill a hole at the base of the dent and thread in the tool's self-tapping screw. A few sharp blows of the slide hammer will pull the dent out. The puller is 17" long with Pyralin handle grip. It is a replaceable self-tapping screw. It comes with instructions included.