Irwin 49906 I-100 Solid Center Auger Bit, 499 Series

Irwin 49906 I-100 Solid Center Auger Bit, 499 Series

The Irwin I-100 Solid Center Auger Bit is part of the 499 Series, a lineup of solid-center auger bits engineered for demanding jobsite drilling in hard and soft wood, available across six sizes (Models 49906, 49907, 49910, 49911, 49912, and 49913). This listing covers Model 49906, an 11/16-Inch diameter bit with a 4-1/2-Inch twist length and 7-1/2-Inch overall length. Every bit in the 499 Series shares a solid-center design for straight, rigid boring and a single cutting spur that scribes the outside of the hole for a faster, cleaner drill with a smooth finish. The strengthened twist resists bending under load, making these auger bits a dependable choice for carpenters, framers, and woodworkers who need consistent, accurate holes.

Key Features

• 499 Series Sizing: Offered in six sizes across Models 49906, 49907, 49910, 49911, 49912, and 49913 to cover a range of boring needs.
• Model 49906 Dimensions: 11/16-Inch diameter with a 4-1/2-Inch twist length and 7-1/2-Inch overall length.
• Durable Construction: A strengthened twist offers bend resistance, and a solid-center design provides extra rigidity while boring for long-lasting performance on the jobsite.
• Single-Spur Cutting Edge: Scribes the circumference of the hole as it bores, producing clean holes and a smoother finish.
• Coarse Screw Point: Delivers fast, efficient boring in both hard and soft woods.
• Wide Lands Design: Wide lands keep the bit straight through the hole, and flutes ground behind the lands funnel chips to the inside of the bit and away from the outside diameter for a faster, cleaner cut.
• Highly Durable: Engineered to withstand repeated use on demanding jobsites.
• Packaging: Sold as an individual auger bit, packaged 24 each per case.

Technical Specifications

• Warranty: NLW
• Claims Needed: No
• Net Lit-Ion Y/N: No
• Country of Origin: BRA
• Battery Included: No

Typical Applications

• Woodworking and Carpentry Projects
• Framing and Rough Construction
• Cabinet and Furniture Making
• Deck and Outdoor Wood Construction
• Drilling Clean, Straight Holes in Hard and Soft Wood

Why Irwin?

Irwin engineers the I-100 499 Series auger bits with a solid-center design and strengthened twist for rigidity and bend resistance on tough jobsites. The single-spur cutting edge and coarse screw point combine to deliver faster boring, cleaner holes, and a smoother finish in hard and soft wood alike. For professionals who need a dependable auger bit they can count on hole after hole, Irwin's 499 Series delivers consistent, accurate performance backed by durable, solid-center construction across the full size range.