Powerful 19.5 amp, 110V motor for demanding use when wet drilling in reinforced concrete, stone, asphalt, marble, ceramic, walls, floors and more;3 speed gear box (0-510/0-1150/0-2500 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 15 lbs., Collar Diameter 60mm collar for easy mounting, rig mounting kits available. Easy Changeover for wet / dry drilling with integrated connections.;