The IRWIN® Blue Groove 4X Flat Bits feature a patented groove point and cutting edge designed to cut timber cleanly rather than scrape it. These bits are up to four times faster than standard flat bits.
A parabolic scoop improves control and efficiently removes wood chips. The relief angle has been increased from 12° to 17° for enhanced cutting performance. Each bit includes a 152mm shank that is 10% larger in diameter, providing greater durability.
Set includes a sturdy hard case and the following bit sizes (Ø):
12mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 32mm.