IRWIN 88601 12" Speedbor Woodboring Bit Extension

Extend your reach for deep, accurate wood drilling with the IRWIN Tools 88601 12in Speedbor Drill Bit Extension. This drill bit extension transforms standard Speedbor woodboring bits into a long-reach tool, letting you bore clean, precise holes up to 12in deep without switching to specialty tools. Built from robust steel with a polished finish and a 0.25in diameter fit, it minimizes wobble and ensures smooth insertion for consistent hole quality.

Specifically engineered for use with standard Speedbor bits (not compatible with quick-change systems), the 88601 is a practical accessory for carpenters, installers and maintenance technicians. It speeds common tasks such as running low-voltage cable, routing wiring for security camera mounts, and creating neat pass-throughs for surveillance and monitoring equipment. The compact, reliable design makes it easy to add to any jobsite toolkit and reduces the need for drilling from multiple angles.

If you install cameras, access control, or other monitoring hardware, the IRWIN 12in Speedbor extension helps you complete installs faster and cleaner. Add this extension to your toolkit to improve accuracy and efficiency on every security and wood-drilling job.

• Extend reach for deep, accurate wood holes—adds 12in of drilling access for hard-to-reach installs
• Durable steel construction with polished finish for smooth entry and long service life
• Designed for standard Speedbor woodboring bits to maintain cutting performance and hole quality
• Precision 0.25in diameter fit keeps the bit secure and reduces wobble for cleaner holes
• Ideal for security, surveillance and monitoring installations where longer reach and neat cable routing matter