- IRWIN SPEEDBOR drill bits use a tri-flute design for faster chip ejection and less binding
- This 1/2-inch drill bit has cutting spurs with 3 cutting edges for faster, cleaner holes
- A full screw tip allows the drill bit to self-feed for ease of drilling
- The grooved hex shank helps prevent slipping in the drill chuck or bit extension
- Fits virtually any standard 1/4-inch quick-change chucks, including impact drills
- IRWIN SPEEDBOR drill bits use a tri-flute design for faster chip ejection and less binding
- This 1/2-inch drill bit has cutting spurs with 3 cutting edges for faster, cleaner holes
- A full screw tip allows the drill bit to self-feed for ease of drilling
- The grooved hex shank helps prevent slipping in the drill chuck or bit extension
- Fits virtually any standard 1/4-inch quick-change chucks, including impact drills
