49906 Solid Center Auger Bit, 3/8-In., 7-1/2-In. OAL

The Irwin 49906 is a solid center auger bit designed for drilling through both hard and soft woods. This professional-grade bit features a full-length heat-treated shaft that resists bending under heavy-duty drilling conditions, making it reliable for serious woodworking and construction projects. The solid center design with wide lands keeps the bit straight as it bores, ensuring precise, stable drilling and consistent hole quality.

The bit's flutes are ground behind the lands to funnel wood chips toward the inside of the bit and away from the outside diameter. A single spur cutting edge scribes the circumference of the hole for a smooth, finished edge. The coarse screw point enables rapid penetration through various wood densities. This combination of features makes the bit suitable for both general carpentry and demanding drilling applications.

Features and Benefits

• Full-Length Heat Treatment: The entire bit is heat-treated to strengthen the twist where the greatest strain occurs and guard against bending during heavy-duty use.
• Wide Lands: Keep the bit straight as it bores, ensuring precise drilling and stable hole alignment throughout the cut.
• Efficient Chip Removal: Flutes ground behind the lands funnel chips inward, away from the outside diameter for cleaner cuts.
• Single Spur Cutting Edge: Scribes the circumference of the hole for a smoother, more finished edge quality.
• Coarse Screw Point: Provides fast boring in both hard and soft woods.

Specifications

• Brand: Irwin
• Model: 49906
• Diameter: 3/8 inch
• Overall Length: 7-1/2 inches
• Twist Length: 4-1/2 inches
• Type: Solid center, single-spur auger bit