Robert Bosch Tool Group NKST22 Auger Bit 1-3/8 X 7-1/2 in

Product Description

The ROBERT BOSCH TOOL GROUP NKST22 is a heavy-duty auger bit engineered for boring through wood in applications where embedded nails are a constant hazard. Measuring 1-3/8 inches in diameter and 7-1/2 inches in length, this bit is part of the Daredevil Nail Killer line. It features dual cutting edges that balance drilling load while cutting through nails, and an open-faced flute design that clears chips efficiently during deep boring. A reinforced tip absorbs repeated nail impacts without premature failure, and a reamer edge cleans up both entry and exit holes for a finished, accurate bore.

This auger bit is suited for rough carpentry, framing, and remodel work where drilling through dimensional lumber, engineered wood, or reclaimed material with hidden fasteners is common. Electricians boring through existing framing for conduit runs, plumbers routing pipe penetrations through floor joists, and general contractors working demo or retrofit projects will find this bit appropriate for their applications. It is sold in a package quantity of 20 units, making it a practical stock item for crews running multiple tools simultaneously.

Key Features

• Dual cutting edges reduce drilling effort and distribute load for balanced boring
• Open-faced flute design improves chip evacuation and reduces clogging in deep holes
• Reinforced tip withstands repeated nail strikes without tip deformation
• Reamer edge improves entry and exit hole quality for cleaner penetrations
• Rated for 9 times longer life compared to standard bits when encountering nail hits
• 1-3/8 inch diameter x 7-1/2 inch length suits standard framing and joist boring tasks

Compatibility

Designed for use with standard hex-shank or auger-compatible drill chucks found on corded and cordless drill/drivers and right-angle drills commonly used in framing and rough-in work.

Installation Notes

This bit is installed and used by electricians, plumbers, and carpenters performing rough-in boring through wood framing. Ensure the drill is set to the appropriate torque and speed range for auger bits before use. Inspect the bit tip and cutting edges before each use and retire the bit if the reinforced tip or cutting edges show significant deformation. Always wear appropriate eye protection when boring through material that may contain embedded fasteners.