CS Unitec's ETN 2001 P offers wet and dry diamond core drilling in concrete and stone with the same tool. It can be operated hand-held or mounted in a lightweight drill stand. This tool is ideal for plumbers, electricians, contractors and other professionals for drilling anchor holes or through holes. The two-speed gearbox and powerful 15 AMP motor provides the optimum RPM to drill holes up to 4" diameter in concrete, reinforced concrete, brick, block and stone. Unit weighs 15 lbs. and is available with a combination anchor/vacuum drill stand and a vacuum pump.