CS Unitec ETN 2001 P Up to 4" 2-Speed Hand Held/Rig Mounted - Wet/Dry Concrete Core Drill - for Concrete, Brick, Block, and Stone - Made in Germany - 110VHeavy duty, light weight hand held core drill rig with 4" diameter hole capacity Rig Mounted Kits Available MADE IN GERMANY Powerful 15 amp, 110V motor for demanding use when wet drilling in reinforced concrete, stone, asphalt, marble, ceramic, walls, floors and more 2 speed gear box (0 800 0 1570 rpm load speed) concrete drill with oil bath gear box and mechanical safety clutch for optimal lubrication, reduced heat and increased user safety Machine