Irwin Blue Groove 6pce Wood Bit Set Drill Bits This model also has a

This model also has a slate hole punch which operates by closing the handles

Blade diameter: 165mm

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Irwin Blue Groove 6pce Wood Bit Set Drill Bits This model also has aIRWIN BLUE GROOVE 6PCE WOOD BIT SET IRWIN Blue Groove 6X Wood Bits are ideal for drilling wood and offer 6x faster drilling penetration than a standard flat bit. Their Tri Flute design allows for faster chip ejection and their full screw tips ensure ease of use and pull through. The cutting spurs produce clean holes with minimal break out and the tapered flute reduces binding. The drill bits are also heat treated for extra durability.