*KeyFeatures *6 inch Max Drilling Diameter: 2180W powerful motor of the handheld core drill rig is designed for wet drilling in reinforced concrete, stone, asphalt, marble, ceramic, walls, floors, and more. With a 6"/160mm max drilling diameter and 1600RPM stepless speed, you can drill with less effort. *Durable Steel Output Shaft & Copper Inlet: As the machine will work upside down, water will unavoidably flow on to the drill machine. In this case, our drilling rig has a rustproof steel forged output shaft and waterproof copper water inlet for a long-lasting water supply. *Over-current Protection: We also provide an overload protection system and an upgraded cooling system. They are designed for avoiding burn-in and prolonging the service lifespan of the drilling press machine. *Comfortable Shoulder Rest & Handle: The upgraded shoulder rest is designed to save your energy. The slip-proof rubber handle greatly enhances friction and reduces vibration to completely control the hammer with comfort. Besides, tools are well stored and sorted in a compact case. *Wide Range of Application: The wet diamond core drilling rig can be widely used in drilling reinforced concrete, red brick, marble, and other materials. It is perfect for installing air conditioners, pipes, stair railings, repairing highways, etc. ******************************************************************************************************* *Specifications Rated power: 2180W Power supply: 220V Rotate speed: 1600 U/min Drilling Diameter: 6"160mm Spindle Thread: 1-1/4" UNC Dimensions: 21.7" x 12.6" x 17.7" Weight: 20.7lbs ******************************************************************************************************* *Pakcage Content 1 x 2180W Rock Core Drill Machine Screwdrivers Users Manual