Irwin IWAX2005 Self-feed Drill Bit 1.5 in Hex Shank

Product Description

The IRWIN IWAX2005 is a self-feed drill bit designed for fast, aggressive boring through wood framing, structural lumber, and similar materials encountered in residential and light commercial construction. The 1.5-inch cutting diameter and 0.4375-inch hex shank make it compatible with standard hex-chuck drill drivers and extension shafts commonly used by electricians, plumbers, and HVAC technicians running conduit, pipe, or ductwork through framed walls and floors. The bit is manufactured from steel with an oxide coating that helps resist heat buildup and surface corrosion during extended drilling cycles. Overall length is 6 inches, keeping the tool compact for tight-bay applications.

Self-feed bits in this size range are standard issue for trade work requiring clean, repeatable holes through single or double top plates, floor joists, and wall studs. The 1.5-inch bore accommodates common pipe and conduit diameters used in plumbing rough-in, low-voltage cable runs, and small-diameter flex duct penetrations. The hex shank seats securely in quick-change chuck systems without slipping under the torque loads typical of self-feed cutting geometry. This bit ships as a single unit and is suited for service trucks, job-box inventory, or shop stock.

Key Features

• 1.5-inch cutting diameter for standard pipe and conduit rough-in holes
• 0.4375-inch hex shank for secure seating in quick-change and standard hex chucks
• Steel construction with oxide coating for heat and corrosion resistance
• 6-inch overall length suits confined framing bays and joist spaces
• Self-feed tip geometry pulls the bit through material without constant feed pressure

Compatibility

Designed as an OEM-style self-feed drill bit compatible with standard 7/16-inch hex-chuck drill drivers and bit extension shafts used in wood-boring applications.

Installation Notes

Self-feed bits are installed and removed by licensed electricians, plumbers, HVAC technicians, and general contractors performing rough-in drilling. Always confirm the drilling path is clear of energized wiring, pressurized pipe, and structural fasteners before boring. Use a heavy-duty corded drill or high-torque cordless drill rated for self-feed bit operation to prevent stalling or chuck damage. Secure the workpiece where possible and maintain firm, two-handed control of the drill throughout the cut.