Gator Silicon Carbide 4.5-in Sanding WheelMedium density pads are great for use on contours and fine finishing work Supports 4 1 2 inch surface conditioning and fiber discs For use on angle grinders 7 8 inch arbor Proudly made in the USA Features Sub Brand N A Series Name N A Application Sanding Material Silicon carbide Type N A Wheel Type Sanding wheel Grit N A Diameter (Inches) 4. 5 Thickness (Inches) 0 Arbor Diameter 7 8 in Threads Per Inch 0 For Use with Concrete & Masonry No For Use with