Powerful 18 amp, 110V motor for demanding use when wet drilling in reinforced concrete, stone, asphalt, marble, ceramic, walls, floors and more;450 rpm load speed concrete drill with oil bath gear box and mechanical safety clutch for optimal lubrication, reduced heat and increased user safety;Machine integrated water supply with gardena style quick connect and adjustable valve for easy use with standard garden hose. GFCI over-current cut-off protection standard;Only 34 lbs., 31 inch aluminum column for easy mounting and deep diamond drilling without added weight;