The Irwin 6X Blue Groove 18mm Wood Drill Bit is designed for drilling medium to larger diameter holes in timber, making it particularly suitable for plumbing installations, electrical conduit work, and carpentry applications. This 18mm variant provides the perfect size for many common trade applications where precision and speed are essential. Engineered to deliver six times faster drilling penetration than standard flat bits, this 18mm drill bit significantly increases productivity on demanding jobs. The innovative Tri-Flute design ensures rapid chip ejection, maintaining consistent drilling speed and preventing bit clogging. A full screw tip provides positive engagement with the workpiece and effortless pull-through, whilst precision cutting spurs create clean, professional holes with minimal breakout on both sides. The tapered flute geometry reduces binding during operation, ensuring smooth performance even when drilling at depth. Heat-treated for exceptional durability, this 18mm drill bit is built to withstand the demands of daily professional use across various wood types. Features and Benefits: • 18mm diameter perfect for common trade applications • 6X faster drilling penetration than standard bits • Tri-Flute design for superior chip ejection • Full screw tip for easy, controlled drilling • Cutting spurs ensure clean hole quality • Heat treated for long-lasting performance Specifications: Diameter (mm): 18 Overall Length (mm): 165 Pack Qty.: 1