Vari Bit® Step Drill Bit, #3, 1 4 in to 3 4 in Cutting Dia, 9 Steps ORS NASCO Deburring Arbor Thread TPI Deburring Arbor Thread TPI or Pitch 5 8 in 11 Big Catalog YES Body Material Aluminum Backing Brand Weiler Catalog MPI Catalog Construction Catalog NO Country of Origin US Dia Natural cotton canvas keeps hands cool and protected Knit wrist helps prevent dirt and debris from entering the glove Clute cut provides a roomy fit and straight thumb increases comfort in closed fisted work Double palm provides additional weight Features high speed steel construction and steam oxide coating Patented design with two cutting flutes allows for clean burr free holes Split point design for faster penetration and less walking