Irwin 87916 Speedbor Wood Boring Bit 1 X 4 Inch

Product Description

The IRWIN INDUSTRIAL TOOL CO 87916 is a Speedbor wood boring bit designed for drilling clean, straight holes in wood in confined spaces. At 1 inch in diameter and 4 inches in length, its shorter profile is purpose-built for situations where a full-length spade or auger bit simply will not fit. Electricians, plumbers, and HVAC technicians regularly use this bit when running wire, pipe, or flex duct through framing members in tight quarters. The bit weighs 0.62 pounds and ships as a single unit.

This boring bit is suited for residential and light commercial rough-in work where access is restricted. Its compact length makes it practical for drilling between studs, through rafters, and inside cabinet interiors without requiring the tool operator to reposition excessively or use an angled drill attachment. It is a common tool for trade professionals drilling penetrations for low-voltage wiring, plumbing supply lines, and mechanical system components in framed wall and ceiling cavities.

Key Features

• 1 inch diameter x 4 inch length for work in tight, restricted spaces
• Shorter overall length allows drilling between studs, rafters, and inside cabinets
• Drills straight holes in wood without excessive tool travel room
• Lightweight at 0.62 pounds for extended use in overhead or awkward positions
• Sold individually (unit of measure: EA)

Compatibility

Designed as a general-purpose wood boring bit compatible with standard 3/8 inch and 1/2 inch chuck corded or cordless drills commonly used in trade applications.

Installation Notes

Installation and use of this bit is typically performed by electricians, plumbers, or HVAC technicians during rough-in phases. Ensure the drill chuck is fully tightened before use and that the bit is properly seated. When drilling near structural members, follow applicable building codes regarding notch and hole placement requirements for framing. Wear appropriate eye protection when operating in overhead or confined positions.