Irwin 4X Blue Groove Long Flat Wood Drill Bit 28mm 400mm

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Irwin 4X Blue Groove Long Flat Wood Drill Bit 28mm 400mm

The Irwin Blue Groove 4X Long Flat Bit in 28mm x 400mm delivers exceptional drilling performance for very large diameter applications in timber construction. Engineered for heavy-duty use, this extended-length bit allows you to bore deep, clean holes through structural timber, joists, and framing without needing to reposition the workpiece. Its unique blue groove design rapidly clears chips and reduces friction, making it ideal for professionals tackling plumbing, electrical, and rough carpentry tasks where speed and precision matter.

- 4X longer than standard flat bits, providing a 400mm overall length for deep drilling applications

- Blue groove coating minimises heat build-up and helps extract wood chips efficiently

- Precision-ground cutting spur for a cleaner hole entry and reduced breakout on exit

- Full-length hardened steel body offers durability and resists bending under load

- 28mm diameter suitable for large-scale timber connections and service installations

- Compatible with standard 3-jaw chucks and impact drivers for versatile use

Trust the Irwin Blue Groove range to maintain sharpness and deliver consistent results on every job.

GTIN: 024721014269