Robert Bosch Tool Group NKLT12 Long Auger Bit 3/4 in

Product Description

The ROBERT BOSCH TOOL GROUP NKLT12 is a long auger bit designed for boring through wood in applications where nails and fasteners are present. Part of the Daredevil Nailkiller series, this bit measures 0.75 inches in diameter with a 17.5-inch overall length and a 13.5-inch flute length. The 7/16-inch hex shank seats securely in standard drill chucks and impact-ready drivers. Dual cutting edges balance the drilling load while the open-faced flute clears chips efficiently. A reinforced tip handles repeated nail strikes, and the reamer edge cleans up entry and exit holes. Licensed electricians, plumbers, and general contractors reach for this bit when running conduit, pipe, or wire through framed walls and joists.

This bit fits residential and light commercial rough-in work where wood framing intersects with embedded nails, screws, or staples. It is suited for drilling through dimensional lumber, engineered lumber, and subfloor assemblies. The 17.5-inch length provides reach through double or triple framing members without requiring extensions. Trades that regularly bore long holes through studs and plates — electrical, plumbing, and low-voltage installation — will find this bit appropriate for production drilling in nail-laden framing.

Key Features

• Dual cutting edges reduce drilling resistance and keep the bit tracking straight through wood
• Reinforced tip rated for repeated nail contact, with up to 9 times longer life under nail-hit conditions compared to standard auger bits
• Open-faced flute design improves chip evacuation and reduces heat buildup during deep boring
• Reamer edge improves entry and exit hole quality, reducing tearout
• 7/16-inch hex shank (0.4375 inches) compatible with standard drill chucks and quick-change systems
• 17.5-inch overall length provides reach through thick framing assemblies without extensions

Compatibility

Designed for use in wood framing applications involving embedded nails and fasteners. The 7/16-inch hex shank fits standard drill chucks and hex quick-change adapters compatible with that shank size.

Installation Notes

This bit is installed and used by electricians, plumbers, and other trades performing rough-in drilling through wood framing. Secure the hex shank fully in the chuck before operation and verify the drill is set to the appropriate speed for the material diameter. Always wear eye protection when drilling through nail-embedded framing, as metal fragments may be ejected. Do not apply side-load pressure to the bit shank during drilling, as this can cause bit deflection or chuck damage.