Irwin Speedbor MAX Speed Bits 6" Standard Length Bits 7/16" X 6"

Speedbor MAX Speed Bits 6" Standard Length Bits Features:
Three cutting spurs for faster, cleaner holes, 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.
1/4" quick-change shank reduces slipping in standard chucks and is compatible with all 1/4" quick-change chucks, including impact drills.