Irwin SPEEDBOR MAX 1/2″ X 16″ OAL Wood Boring Installer Drill Bit
Speedbor MAX Speed Bits 16-In Long Length Bits.
3 Cutting spurs for faster, cleaner holes with less breakout and extended drilling life
Full screw-point tip allows bit to self-feed for ease of drilling
Tapered tri-flute design for faster chip ejection and less binding
Hole in flute for easy wire pulling through walls, ceilings, and floors