Irwin IR3046014 Speedbor Self-feed Wood Bit 3 in

Product Description

The IRWIN IR3046014 is a 3-inch Speedbor self-feed wood bit designed for boring large-diameter holes through dimensional lumber, engineered wood, and similar framing materials. The self-feed design pulls the bit through the workpiece without requiring heavy downward pressure, allowing the operator to maintain control during high-speed drilling. This bit is suited for electricians, plumbers, and HVAC installers who need to run conduit, pipe, or ductwork through wood framing members. At 1 pound, it is light enough for overhead or confined-space work with a standard or right-angle drill driver.

This self-feed bit is commonly used in rough-in framing applications where large-diameter clearance holes are needed through wall plates, joists, and headers. Electricians rely on self-feed bits to bore through multiple studs in a single setup when pulling wire runs. Plumbers use them for drain, waste, and vent pipe routing through floor and ceiling joists. HVAC technicians use similar bits to route flexible duct and refrigerant line sets through framing cavities. The 3-inch cutting diameter accommodates a wide range of pipe and conduit sizes commonly encountered in residential and light commercial construction.

Key Features

• 3-inch cutting diameter sized for pipe, conduit, and duct penetrations through wood framing
• Self-feed tip pulls the bit forward through the material, reducing operator push force
• Designed for use with standard hex-shank or 7/16-inch hex chuck drill drivers
• Lightweight at 1 pound for extended overhead or one-handed drilling tasks
• Sold individually for single-size replacement or supplemental purchase

Compatibility

Designed as an OEM-style replacement or supplemental self-feed wood bit compatible with standard 7/16-inch hex-shank drill drivers and right-angle attachments commonly used in framing and rough-in trade work.

Installation Notes

Self-feed wood bits are installed and operated by electricians, plumbers, and HVAC technicians during rough-in phases of construction. Confirm that the drill driver is rated for the torque demands of large-diameter self-feed bits before use. Always verify framing members are free of embedded nails, screws, or structural hardware before boring. Local codes such as the NEC and IPC may specify minimum edge distances and hole-size limits when drilling through load-bearing members.

Technical Specifications

• Cutting Diameter: 3 inches
• Weight: 1 pound
• Sold As: Each
• UPC: 024721104793

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: IR3046014