Irwin 3046006 Speedbor Max Self-feed Wood Drill Bit, 1-1/4 In.

The Irwin 3046006 Speedbor Max Self-Feed Wood Drill Bit is a heavy-duty boring tool designed for drilling large-diameter holes in wood. The self-feed design with coarse-thread feed screws powers the bit through wood, making it well-suited for boring holes for pipe, conduit, and electrical wiring applications. The spurs on the outside diameter cut holes clearly and accurately.

This 1-1/4 inch diameter bit features a 7/16 inch hex quick-change impact shank that connects instantly to 1/2 inch or larger drills and 7/16 inch hex impact wrenches, eliminating downtime when switching tools. The precision-milled shank geometry reduces run-out and wobble, ensuring accurate, straight holes every time.

Features and Benefits

• Self-Feed Design: Coarse-thread feed screws deliver fast boring action through wood.
• Quick-Change Hex Shank: The 7/16 inch hex shank fits 1/2 inch or larger drill chucks and 7/16 inch hex impact wrenches, saving time on tool changes.
• Accurate Cutting: Spurs on the outside diameter cut holes clearly and accurately.
• Precision Shank Geometry: Milled shank design maintains hole straightness and eliminates run-out and wobble.
• Large Hole Boring: The 1-1/4 inch diameter and 5 inch overall length make it perfect for boring large holes in wood for pipe, conduit, and electrical wiring.

Specifications

• Brand: Irwin
• Model: 3046006
• Bit Diameter: 1-1/4 in.
• Overall Length: 5 in.
• Shank Type: 7/16 in. hex quick-change impact shank
• Cutting Flutes: 3-flute
• Compatible Drills: 1/2 in. or larger chucks
• Compatible Impact Wrenches: 7/16 in. hex
• Included: One hex key and two feed screws