IRWIN Speedbor MAX Speed 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