Mid-Western Machinery offers the Portadrillmini drilling rig. With a 3-foot-by-3-foot portable size, this drilling unit can fit through standard doorways and between tightly spaced houses. This rig, with its pull-down pressure design, allows the operator to apply downward force on the drill bit. Up to 400 pounds of extra weight can be added to the unit to provide more downward force. With three different packages being offered, operators can select from two gasoline-powered engines or a diesel-powered unit. Mid-Western Machinery, Card No. 186