The IRWIN® 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 12° to 17°. The shank is 152mm in length and 10% larger in diameter for added durability.This IRWIN® Blue Groove 4X Wood Flat Bit Set is supplied in a wallet. Contains the following: Sizes (Ø): 10 13 16 19 22 and 25mmPTDIRW10502826
