The IRWINreg; Blue Groove 4X Flat Bits have a patented groove point and cutting edge, designed to cut and not scrape the timber. They are 4 times faster than standard flat bits. The parabolic scoop optimises control and removal of wood chips.
Increased relief angle from 12deg; to 17deg;. The shank is 152mm in length and 10% larger in diameter for added durability.
The Irwin IRW10502810 Blue Groove 4x flat bit has the following specific dimension:
Diameter: 17mm
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