Description
This blue groove flat drill bit set from Irwin uses a patented design for the groove point and cutting edge. The cutting edges cut the timber 4 times faster than standard spade bits, without scraping. The parabolic scoop optimises control and the removal of wood chips.
These drill bits have an increased relief angle from 12° to 17°. The large shank is 152 mm in length and 10% larger in diameter for added durability. The grooved hex shank prevents slipping in the drill chuck or bit extension.
8 piece flat wood pieces in the following sizes: 12/14/16/18/20/22/25/28 mm
6 piece auger set in the following sizes:14/16/18/20/22/25 mm
These sets come in hard cases for easy storage and transport.
Parabolic scoop
Increased relief angle
Large shank
Durable design
Specifications
Colour: Blue
Patented groove point and cutting edge
Parabolic scoop
Large shank
Durable design
Increased relief angle from 12° to 17°
Tri-flute design for faster chip ejection
Full-length heat treatment for extra durability
Full screw tip for ease of use and pull through
1/4” quick exchange shank
3 cutting edges


























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