Stewart Fastener NB12L Nail Eater Auger Bit 3/4x18

Product Description

The STEWART FASTENER NB12L is a Nail Eater auger bit designed for boring through wood framing that may contain embedded nails, screws, or other metal obstructions. Measuring 3/4 inch in diameter and 18 inches in length, this bit is built for the demanding access-hole work that plumbers, electricians, and HVAC installers perform daily during rough-in and retrofit jobs. The extended length allows techs to reach through deep framing members and wall assemblies without repositioning. Its Nail Eater design means the cutting geometry is hardened to handle incidental nail contact rather than immediately dulling or deflecting off course.

This auger bit is suited for residential and light commercial rough-in work where trade professionals need to bore 3/4-inch pathways through wood studs, plates, and joists for pipe, conduit, or duct runs. The 18-inch length is a common choice for plumbers running drain or supply lines, electricians pulling wire through framing, and HVAC techs routing low-voltage or refrigerant line sets through tight wall cavities. It performs in new construction and in retrofit scenarios where existing framing may contain hidden fasteners.

Key Features

• 3/4-inch cutting diameter sized for standard pipe and conduit rough-in work
• 18-inch overall length for deep-reach boring through multiple framing members
• Nail Eater design engineered to resist damage from contact with embedded nails and fasteners
• Auger-style flute promotes chip clearing during extended-depth bores
• Compatible with standard hex-shank or auger-chuck power drills and right-angle drills commonly used in trade work

Compatibility

Designed as an OEM-style replacement or direct-use auger bit suitable for standard power drills and right-angle drill drivers used in plumbing, electrical, and HVAC rough-in applications.

Installation Notes

Licensed plumbers, electricians, and HVAC technicians are the primary installers of this type of bit during rough-in phases. Ensure the drill is at full stop before changing or inspecting the bit. When boring near existing wiring or piping, verify wall cavity contents with a stud finder or inspection camera before drilling. Hole placement and sizing should comply with applicable local building codes, NEC clearance requirements for electrical work, and IPC or IFGC spacing rules for mechanical trades.

Technical Specifications

• Diameter: 3/4 inch
• Length: 18 inches
• UPC: 662352188593

Standard Information

• Brand: STEWART FASTENER
• Manufacturer Part Number: NB12L