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).
- 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.
View Full Delivery & Returns PolicySecure Transactions
We take the utmost care with your payment and personal details. Our website uses advanced encryption technology, including Secure Sockets Layer (SSL), to protect your information during transmission. You can check a secure connection by looking for 'https' and a locked padlock in your browser.
Cookie Policy
Cookies enhance your shopping experience by keeping track of your cart and remembering you when you return. We also use banner advertising based on your browsing history to present products of potential interest.
Security Warning
Beware of phishing scams! We will never ask for personal details via email. If such information is required, we'll ask you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.
