CS Unitec ETN 2001 P 2-Speed Hand Held Wet or Dry Concrete Core Drill for Holes up to 4" Diameter The ETN 2001 P concrete core drill is ideal for hand-held drilling of concrete, reinforced concrete, brick, block and stone This machine offers wet and dry diamond core drilling with the same tool; replacing the water seal is easy and can be done on the job STANDAR FEATURES INCLUDE: safety slip clutch, thermal overload switch, water swivel collar, ground fault Interrupter, and metal carrying case 15 amp, 110 volt, load speeds (rpm) 0-800/ 0-1570, no-load speeds (rpm 1000/ 2300), 52 mm collar diameter, 15Lbs Made in Germany