VEVOR 8-Inch Wet Sharpening System, Water-Cooled Knife Grinder Machine with 155 RPM Grinding Speed, Vertical/Horizontal Two-Direction Wet Stone Grinder, Wet Bench Grinder for Knife, Chisel, Knife, Axe8-Inch Sharpening SystemEfficient and Stable PerformanceGrinding and Polishing in OneWater-Cooling DesignWide ApplicationsCompact and PortableWet Grinding Wheel: 8 x 1-9/16 x 1/2 inch (200 x 40 x Φ12 mm),Color: Black,Item Model Number: SCM8082,Leather Honing Wheel: 8 x 1-1/8 x 1/2 inch (200 x 30 x Φ12.5 mm),Rated Power: S2 30min 150W,Grinding Method: Water-Cooled,Item Dimensions: 18.11 x 12.4 x 13.39 inch / 460 x 315 x 340 mm,Speed Control: Single Speed,Net Weight: 22.05 lbs / 10 kg,Grinding Wheel Speed: 155 RPM,Main Material: Plastic