VEVOR Diamond Core Drilling Machine, 0.8-8 in Drilling Diameter, Stand-Mount Dry and Wet Concrete Core Drill Rig with 8 Drill Bits, 800 RPM Speed, UNC1 1/4-7 Thread, for Concrete Brick Stone, 3000W Security Clutch Overload Protection Device Efficient Heat Dissipation Wet Drilling System Built Tough Versatile Use No-Load Power: 1500W,Stroke: 15.7 in/400 mm,Brick Drilling Capacity: 0.8-8 in/20-200 mm,Concrete Drilling Capacity: 0.8-6.3 in/20-159 mm,Output Shaft Size: UNC1 1/4-7 External Thread,Max Load Power: 3000W,Net Weight (Machine Only): 34.8 lbs/15.8 kg (With Stand),Net Weight (Including Accessories): 97.9 lbs/44.4 kg,Type: Vertical Stand Type,Included Drill Bits: 8 Pieces,Max Drill Bit Diameter: Φ7.9 in/200 mm,Water Inlet Size: Barbed Fitting, OD 0.3 in/8.6 mm,Item Model Number: Z1Z-CF-9200,No-Load Speed: 800 RPM Fixed Speed,Product Dimensions (L x W x H): 12.6 x 7.5 x 29.5 in/320 x 190 x 750 mm