DEWALT Diamond 7 in Cup Wheel Decorative Floor Tile ) 6 in Manufacturer Warranty Power That Organizes Your ) 6 in Manufacturer Warranty LIMITED ONE YEAR WARRANTY This warranty covers all defects in workmanship or materials in this POWERTEC tool for a one year period from the date of purchase Q: Does it include keys Sub Brand N A Series Name N A Application Grinding Material Diamond Type N A Wheel Type Cup wheel Grit N A Diameter (Inches) 7 Thickness (Inches) 1 High diamond concentration for long life and aggressive material removal Large grinding segments with heat treated steel bodies which provides increases durability and wheel life Dry grinding of concrete and other masonry materials Smoothing of uneven surfaces