The irwin blue groove 4x flat bit 16 x 152mm delivers professional drilling performance engineered with patented groove point technology. This advanced cutting edge is designed to cut rather than scrape timber, providing superior efficiency and cleaner results. Operating at four times the speed of standard flat bits, this tool significantly reduces drilling time across timber applications. The parabolic scoop design optimises control while efficiently removing wood chips, maintaining clean cutting paths throughout operation. Engineered with an increased relief angle from 12 to 17 , the bit ensures enhanced cutting efficiency. The 152mm shank features a 10% larger diameter for exceptional durability in demanding professional and workshop environments. Features & benefits: patented groove point and cutting edge cuts timber rather than scraping for superior finish quality. Four times faster drilling performance compared to standard flat bits. Parabolic scoop design optimises control and efficient wood chip removal. Increased relief angle from 12 to 17 for enhanced cutting efficiency. 10% Larger diameter shank delivers exceptional durability in demanding applications. Ideal for professional carpentry, joinery, construction and workshop timber drilling applications. Dimensions: 16mm diameter x 152mm shank length.