2 1/2" X 60" 100 Grit Premium Zirconia Metal Sanding/Grinding Belts (narrow Belt). 6-PK. Zirconia Alumina (Z/A), closed coat, heavy duty Y weight polyester cloth backing. High quality and long lasting metalworking industrial abrasive sanding belts provide a sharp and long lasting cut on metal. Ferrous metals (steel, cast iron, carbon steel, tool steel, stainless steel, nickel alloy, etc.) and metals (aluminum, steel, iron, brass, bronze, etc.). Also excellent for Hardwoods. Super Heavy duty Y-wgt material provides extra strength for working with metal grinding, knife and blade sharpening, weld removal, stock removal, finishing and deburring. Resin over resin bonding. Bi-directional tape joint. Wet or Dry applications. Assembled in America.