Diameter: 4"Depth Of Cut: 1-1/2"For Use On Non-Ferrous Materials Including Hard Tile, Granite, Travertine, Marble, Plastics, Cement Board, Fiberglass, Decking, Laminates, Brick, Paving, Thin Sheet Metal, Aluminum And MoreVacuum Brazed Diamond Tip For Fast Penetration And Long Tool LifeThin Wall Construction For Rapid Penetration And Removal Of ChipsUse Wet, Dry Or LubricatedMax RPM: 200-600