49905 Solid-center Auger Bit, 5/16 In. Dia., 7-1/2 In. Oal

The Irwin 49905 is a solid-center auger bit designed for boring clean, straight holes in wood for cabinetry, furniture, and general woodworking projects. Its full-length heat-treated construction provides the rigidity needed for heavy-duty applications, preventing bending and strengthening the twist where the greatest strain occurs. The bit's design minimizes tear-out and produces consistently smooth holes, making it ideal for work that demands precision and clean finishes.

Wide lands along the bit's body keep it perfectly straight as it bores through the hole, while the flutes are strategically ground behind the lands to funnel wood chips to the inside of the bit and away from the outside diameter. This chip evacuation design produces a faster, cleaner cut. The single spur cutting edge scribes the circumference of the hole for a smoother perimeter finish, and the coarse screw point ensures fast boring in both hard and soft woods.

Features and Benefits

• Full-Length Heat Treatment: Provides rigidity and prevents bending during heavy-duty boring, strengthening the twist where the greatest strain occurs.
• Wide Lands Design: Keeps the bit perfectly straight throughout the boring process for accurate, consistent holes.
• Chip Evacuation System: Flutes ground behind the lands funnel chips inward and away from the outside diameter for a faster, cleaner cut.
• Single Spur Cutting Edge: Scribes the circumference of the hole for a smooth, finished edge on wood surfaces.
• Coarse Screw Point: Provides fast boring in both hard and soft woods.
• Minimized Tear-Out: The design reduces splitting and tear-out on wood surfaces, ideal for cabinetry and furniture applications.

Specifications

• Brand: Irwin
• Model: 49905
• Diameter: 5/16 in.
• Overall Length: 7-1/2 in.
• Twist Length: 4-1/2 in.
• Flute Design: Solid center, 1-flute
• Construction: Heat-treated steel

Descriptions are AI-generated. For accurate measurements, please call the store to confirm.