Greenlee Nail Eater Extreme Hex Shank Wood Boring Bit

Greenlee 50309196 Nail Eater Extreme Wood Boring Bit, 5/8 IN, Hexagonal Shank

The Greenlee 50309196 Nail Eater Extreme is a heavy-duty wood boring bit engineered for electricians and contractors who need to drill through framing members that may contain embedded nails or fasteners. Built from heat treated steel, this bit features a 5/8 IN (15.900 MM) bit diameter, an 18.000 IN (457.200 MM) overall length, and a 15.000 IN (381.000 MM) twist length that allows for deep boring through studs, joists, and other structural wood members during electrical rough-in work. The 7/16 IN (11.100 MM) hexagonal shank is designed for a secure, slip-resistant grip in compatible drill chucks and impact-rated drivers, helping transfer torque efficiently even under heavy load. As part of the Greenlee Nail Eater® family, this bit is purpose-built to keep cutting through obstructions that would stop a standard auger bit, reducing downtime on the jobsite. Manufactured in the US, it is designed for professional electrical rough-in crews who need a bit that can survive contact with hidden metal fasteners without dulling or snapping.

Key Features

• Bit Diameter: 5/8 IN (15.900 MM) for standard electrical rough-in boring applications.
• Overall Length: 18.000 IN (457.200 MM) with a 15.000 IN (381.000 MM) twist length for reaching through deep framing members.
• Durable Construction: Heat treated steel body designed to resist wear and hold an edge when boring through wood that may contain hidden nails.
• Hexagonal Shank: 7/16 IN (11.100 MM) hex shank diameter for a secure, positive-drive connection with drills and drivers.
• Nail Eater® Design: Engineered specifically to power through nail-embedded wood without stalling out like a conventional auger bit.
• Compact Footprint: Product dimensions of 18.650 IN length, 1.150 IN width, and 1.100 IN height for easy handling and storage in a tool bag.
• Volume: 23.59225 CI, reflecting the substantial steel mass built into this heavy-duty bit.

Technical Specifications

• Bit Diameter: 5/8 IN (15.900 MM)
• Country Of Origin: US
• Overall Length: 18.000 IN (457.200 MM)
• Product Height: 1.100 IN
• Product Length: 18.650 IN
• Product Material: Heat Treated Steel
• Product Width: 1.150 IN
• Shank Diameter: 7/16 IN (11.100 MM)
• Shank Type: Hexagonal
• Sub Brand: Nail Eater®
• Twist Length: 15.000 IN (381.000 MM)
• Volume: 23.59225 CI

Typical Applications

• Electrical Rough-In Wiring Through Wood Framing
• Drilling Through Studs, Joists, and Rafters
• Boring Through Wood That May Contain Embedded Nails
• New Construction and Renovation Electrical Work
• Low-Voltage and Data Cable Installation Through Framing

Why Greenlee?

Greenlee builds the Nail Eater® Extreme line from heat treated steel to withstand the punishment of boring through nail-embedded framing lumber, a common hazard on renovation and remodel jobsites. The hexagonal shank design and reinforced construction help electricians keep working through obstacles that would damage a standard wood boring bit. Manufactured in the US, this bit is built to deliver dependable performance for professional electrical installation crews who need consistent boring results job after job without frequent bit replacement.