Name: Drilling MachineMaximum Mrilling Diameter: Φ180MM/7.1INVoltage: 110V 60HZInput Power: 2200WNo-load speed: 1200r / minWater seal design: Copper TubeAdvantage:The gear mechanical clutch is built into the gear box . When the high-speed rotating drill is locked, the gear and the motor are mechanically separated in time to ensure that the motor also prevents accidental damage to the user, greatly improving Quality and safety of the product.The motor has strong load capacity and high hole expansion efficiency.Domestic well-known brand switch,The electric wire guarantees the service life.The service life of the carbon brush load is up to 150 hours.The motor has a long service life.The power cord used in the midplane should be more than 2 square.Equipped with sharp high-quality drill bits, easily loosening the reinforced concrete wall.