Irwin 4X Blue Groove Flat Wood Drill Bit

The 18mm IRWIN® Blue Groove 4X Flat Bit is a versatile size perfect for substantial construction work, large fixture installations, and robust carpentry applications in timber. This diameter provides excellent capability for creating clearance holes for significant hardware and fittings. Featuring the patented groove point and cutting edge design, this 18mm bit cuts through timber cleanly and efficiently without scraping, producing professional results every time. The advanced technology delivers speeds up to 4 times faster than standard flat bits, significantly boosting productivity on site. The parabolic scoop provides superior chip removal and maintains excellent control, particularly beneficial when drilling deeper or multiple holes. With an increased relief angle of 17° for enhanced cutting performance and a robust 152mm shank manufactured 10% larger in diameter, this bit is built for demanding professional applications. The strengthened construction resists bending and maintains accuracy even under sustained intensive use, making it a reliable choice for trade professionals.