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Irwin Speedbor 5/16" x 6" Spade Bit

Brand: Irwin Mfg#: 88805
Product#: 17388805
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Speedbor Standard Length Spade Drill Bit, 0.3125 in Diameter, 6 in Overall Length, 0.25 in Shank, Hexagonal Shank, Double Cutting Spur Point, Blue Groove Point, Carbon Steel, For Faster Chip Removal


  • Fits all standard quick change chucks
  • 10% larger shank for added durability
  • Grooved hex shank prevents slipping in drill chuck or bit extension
  • Blue groove point and cutting edge for faster chip removal, 4x faster than standard spade bits
  • Double cutting spurs scribe the outside of the hole reducing breakout


  • Brand: Irwin
  • Product Line: Speedbor
  • Diameter: 0.3125 in
  • Shank Size: 0.25 in
  • Shank Type: Hexagonal
  • Material: Carbon Steel
  • Overall Length: 6 in
  • Point Shape: Double Cutting Spur
  • Point Type: Blue Groove
  • Usage: For Faster Chip Removal