Irwin 4X Blue Groove Flat Wood Drill Bit

The 24mm IRWIN® Blue Groove 4X Flat Bit is designed for substantial drilling tasks in timber, ideal for larger fixtures, significant plumbing installations, and heavy-duty construction work. This diameter provides excellent capability for creating clearance holes for substantial hardware and fittings. Featuring the patented groove point and cutting edge technology, this 24mm bit cuts through timber cleanly and efficiently without scraping, ensuring professional results every time. The advanced design delivers speeds up to 4 times faster than standard flat bits, dramatically improving productivity on larger diameter drilling operations. The parabolic scoop provides superior chip removal and maintains excellent control, particularly important when working with this more substantial size. 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.