IRWIN Blue Groove 4X Long Flat Bit 16mm x 400mm
IRWIN’s 16mm x 400mm Blue Groove flat bit cuts timber 4x faster with patented groove tech & parabolic scoop for clean drilling.
The IRWIN Blue Groove 4X Long Flat Bit is engineered for precision and efficiency in wood drilling applications. Featuring a patented groove point and cutting edge, this bit is designed to cut cleanly through timber 4 times faster than standard flat bits—eliminating the scraping effect typical of traditional designs.
Key to its performance is the parabolic scoop, which enhances control and optimises wood chip removal, reducing clogging and improving workflow efficiency. The 17° relief angle (up from the standard 12°) ensures smoother operation and extended bit life, reducing resistance and heat build-up.
Constructed for durability, the 400mm-long shank has a 10% larger diameter than conventional bits, providing added strength for demanding tasks. Ideal for deep drilling in timber, this bit is suitable for professional carpenters, joiners, and DIY enthusiasts alike.
Includes: 1 x IRWIN Blue Groove 4X Long Flat Bit (16mm diameter, 400mm length).
- Dispatched within 0-2 business days
- Delivery to United States: 3-5 business days*
- Free Shipping Included
- Deep wood drilling
- Carpentry and joinery
- Furniture making
- DIY wood projects
- Diameter: 16mm
- Length: 400mm
- Material: High-grade steel
- Special Feature: Patented groove point
- Special Feature: Parabolic scoop for chip removal
- Relief Angle: 17° (vs 12° standard)
- Shank Design: Reinforced (10% larger diameter)
- Performance: Cuts 4x faster than standard flat bits
Always follow local regulations and product guidance.
Free standard delivery on Australian mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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