Irwin Blue Groove 4x Flat Bit – 152mm Length


Irwin Blue Grove 4x bits are designed for professional use, for drilling wood.



Irwin Blue Groove 4x Flat Bit – 152mm Length

  • Double cutting spurs scribe outside of the hole, reducing breakout
  • Thicker cutting edge for longer drilling life
  • Blue Groove point and cutting edge for faster chip removal
  • 10% larger shank for added durability

Available sizes: 10mm | 12mm | 13mm | 16mm | 18mm | 19mm | 22mm | 25mm | 32mm | 38mm | 40mm

Wood1-4inch Quick Change¼” Hex

Additional information


10mm, 12mm, 13mm, 16mm, 18mm, 19mm, 22mm, 25mm, 32mm, 38mm, 40mm

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