Speedbor 1866058 Irwin Tools Max Wood Drilling Bit, 16 Inch by 1/2

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, Weight: 6.25E-4 Pounds, Manufacturer: Speedbor