The Irwin Blue Groove 6X Extra Long Wood Drill Bit in 18mm diameter is ideal for drilling substantial holes for electrical conduit, waste pipes and larger cable bundles through structural timbers. This 400mm (16 inch) extra long bit provides exceptional reach for drilling through walls, ceilings and floors, making it an essential tool for electricians, plumbers and joiners working on installation projects. With 6 times faster drilling penetration than standard flat bits, the 18mm variant delivers outstanding productivity without compromising on hole quality. The sophisticated Tri-Flute design ensures efficient chip ejection, preventing clogging and maintaining consistent cutting performance. The full screw tip provides excellent pull through and accurate positioning, whilst the precision cutting spurs create clean, accurate holes with minimal break out on exit. Heat treated for exceptional longevity, this drill bit features a tapered flute that reduces binding, ensuring smooth operation even when drilling through dense hardwoods or at challenging angles. Features and Benefits: • 18mm diameter for conduit and larger pipe installations • 400mm extra long length for drilling through structural members • 6 times faster penetration for improved productivity • Full screw tip for effortless pull through • Heat treated for enhanced durability Specifications: Diameter (mm): 18 Overall Length (mm): 400 Working Length (mm): 100 Pack Qty.: 1

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