• Home
  • Irwin Speedbor 1/4" x 7-1/2" Short Auger Bit


Image for Irwin Speedbor 1/4
+ / - Hover over image to Zoom
Other Views

Irwin Speedbor 1/4" x 7-1/2" Short Auger Bit

Brand: Irwin Mfg#: 49904
Product#: 17349904
Based on Product Sourcing
Free UPS Ground Shipping on this Item!

Please Login to receive Special Pricing
Not Registered? Create an Account


Speedbor Short Wood Auger Bit, 0.25 in Diameter, Solid Center Flute, 4.5 in Flute Length, 7.5 in Overall Length, 1 Flute, 0.1875 in Shank, Hexagonal Shank, Screw+Spur+Cutter Point, Coarse Screw Point, Solid Structure


  • Single spur cutting edge scribes the circumference of the hole for a smoother finish
  • Coarse screw point provides fast boring in hard and soft woods
  • Wide lands keep the bit straight as it bores through the hole
  • Solid center design provides extra rigidity while boring
  • The flutes are ground behind the lands to funnel chips to the inside of the bit and away from the outside diameter, producing a faster, cleaner cut
  • Full length heat treated bit guards against bending in heavy duty applications and strengthens the twist where the greatest strain occurs


  • Brand: Irwin
  • Product Line: Speedbor
  • Number of Flutes: 1
  • Overall Length: 7.5 in
  • Shank Type: Hexagonal
  • Point Type: Coarse Screw
  • Material: Carbon Steel
  • Structure: Solid
  • Point Shape: Screw+Spur+Cutter
  • Flute Type: Solid Center
  • Cutting Direction: Clockwise
  • Diameter: 0.25 in
  • Flute Length: 4.5 in
  • Shank Size: 0.1875 in