General description The IRWIN® Blue Groove 4X Flat Bit is engineered for efficiency, featuring a patented groove point and cutting edge that allows for cutting rather than scraping timber. This innovative design enables the bit to operate four times faster than standard flat bits, making it an essential tool for any DIY or professional woodworking project. Technical specifications Diameter: 30mm Length of shank: 152mm Increased relief angle: 17° (up from 12°) Durability: Shank is 10% larger in diameter Usage The parabolic scoop design optimizes control and enhances the removal of wood chips, ensuring a cleaner and more efficient drilling experience.