Maximum drilling diameter 230mm, M22 bit socket, Overload safety switch, Water stop valve, Metal gear box, Provides a high degree of efficiency for fast and clean drilling. Ideal use: In combination with water cup cores, the machine is intended for wet drilling in materials such as concrete and reinforced concrete. The support base can be fixed to a wall or floor with hooks and the quick-clamping shaft. Not suitable for drilling. The machine is intended for drilling in construction materials for renovation works and constructions, etc.RemarksCAUTION! • Wear earplugs when the sound pressure is above 85 dB(A). • Make sure that neither the people in the work area nor the power tool itself come into contact with the escaping water. • Keep handles dry, clean and free of oil and grease. Greasy, grips are slippery causing loss of control. •