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Irwin 5/16" x 12" High Speed Steel Aircraft Drill Bit

Brand: Irwin Mfg#: 62120
Product#: 17362120
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Irwin Aircraft Extended Length Drill Bit, 0.3125 in Diameter, 3.1875 in Flute Length, 12 in Overall Length, Extended Length Group, 135 deg Point, Split Point, Straight Shank, M2 High Speed Steel, Black Oxide, Cable


  • Bit is constructed of M-2 high speed steel for the best combination of strength, heat resistance, and wear resistance
  • Ideal for drilling in hard to reach areas and for running wires and cable
  • 135 deg split point ensures a true start and eliminates bit walking
  • For general use in wood, metal, and plastic
  • Black oxide coating resists corrosion


  • Brand: Irwin
  • Point Type: Split
  • Resistance: Corrosion
  • Length Group: Extended Length
  • Finish: Black Oxide
  • Material: M2 High Speed Steel
  • Point Angle: 135 deg
  • Applicable Materials: Metal, Wood and Plastic
  • Overall Length: 12 in
  • Shank Type: Straight
  • Diameter: .3125 in
  • Flute Length: 3.1875 in
  • Usage: For Drilling in Hard-to-Reach Areas and Running Wires, Cable