IRWIN 6x Blue Groove Wood Drill Bit Set of 6: 16, 18, 20, 22, 25 & 32mm
is no longer available although you may find similar or newer versions below:
6 piece set comprising 1 of each : 16, 18, 20, 22, 25 and 32 mm diameter
The Irwin Blue Groove 6x drill 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 tampered flute reduces binding