Microjet� Spanners and Punches are used to: Form the hole into which the Microjet� is to be screwed; Screw the Microjet� into the hole; Snap the Cap off for cleaning. All of the Microjet� Spanners and Punches have a spike or punch portion and a hexagonal socket which accurately fits the hexagon on the Microjet� base. The Microjet� Punch is fitted with a stainless steel tubular punch which removes a small slug from the polyethylene pipe thus forming the correct size hole to receive the Microjet�. This slug is prevented from entering the pipeline by it's retention within the handle of the punch. A hexagon socket at the back of the handle is used to screw the Microjet� into the pipe. The Microjet� Punch comes complete with a cap to cover the sharp punch tip when not in use.