Irwin Speedbore Flat Bit 16mm x 155mm

The Irwin 88916 Speedbor Flat Bit 16mm × 155mm is a high-performance wood boring bit designed to drill larger diameter holes in timber and wood products. With a 155mm total length and a 16mm cutting diameter, it’s ideal for tasks that require deeper reach combined with larger holes, such as running bigger cables, plumbing, or creating openings in studs, beams, or door frames. Its Blue Groove point and double spur cutting spurs help reduce splintering and improve cutting speed. It is suited for both professional tradespeople and serious DIY users who need clean holes, durability, and consistent performance. Uses: Drilling 16mm holes in studs, beams, joists, and other structural timber. Creating pathways for larger diameter conduit, pipes, or cables through wood. Carpentry and construction tasks where large clean holes are required. DIY and trade woodworking, furniture making, decks, and heavy carpentry work. Situations where reduced splintering and clean hole exit are important.