Flexible Depressed Center Wheel, 4 1 2 in dia, 1 8 in Thick, 5 8 in 11 Arbor, 46 Grit, Aluminum Oxide ORS NASCO orderly interior packaging makes contents orderly interior packaging makes contents easy to locate and use Weatherproof case Carry handle or is wall mountable Performance metal cutting wheels for use on steel and ferrous metals Most Metals Applications General Purpose Grinding Arbor Diam [Nom] 5 8 in 11 Arbor Thread TPI or Pitch 11 Big Catalog NO Body Material Resinoid Bonded Bond Resin Brand B LINE ABRASIVES Catalog MPI Catalog Color Black Construction Catalog NO Country of Origin SI Cutting Diam [Nom] 4 1 2 in Dia Aluminum oxide grain effective for all steel and ferrous metals