The IRWIN Blue Groove 4X flat bit has a patented groove point and cutting edge. The cutting edges cut the timber 4 times faster, without scraping. The parabolic scoop optimises control and removal of wood chips.
These flat bits have an increased relief angle from 12° to 17°. The large shank is 152mm in length and 10% larger in diameter for added durability. Typical applications include: carpentry, electrical installation, plumbing and general building. Supplied in a hard set case.
Sizes: 12, 14, 16, 18, 20, 22, 25 and 28mm.