Runs at 11000 rpm making all grinding operations easy and fast,Comes with 2 Grinding and 1 Cutting Wheel,Runs at 11000 rpm making all grinding operations easy and fast,Body Grip: The body of this tool is layered with a special material that offers a firm hold as you work with it. 4 inch diamond blade for tile and granite cutting,Diameter 105mm, Bore size: 20mm, Thickness: 2mm, Height: 7mm,Lightweight and easy to use for all tile and granite cutting applications.