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Irwin Speedbor 3041005 Auger Boring Bit, 7/8 in Dia, 6 in OAL, Tapered Flute, 3-Flute, 1/4 in Dia Shank, Hex Shank
The Irwin Speedbor® MAX SPEED™ wood drilling bit is the fastest Speedbor® ever. The speed tip features a full screw point that allows bit to self-feed, as well as three cutting spurs for faster, cleaner holes, less breakout and extended drilling life. The tapered tri-flute design allows for faster chip ejection and less binding. Its grooved hex shank prevents slipping and fits all standard 1/4 in quick change chucks, including impact drills.
| Diameter | 7/8 in |
| Flute Type | Tapered |
| Number of Flutes | 3 |
| Flute Length | 2-5/8 in |
| Shank Type | Hex |
| Quick Change Shank | Yes |
| Shank Diameter | 1/4 in |
| Point Type | Screw |
| Material | Carbon Steel |
| Finish | Bright |
| Overall Length | 6 in |
| Applicable Materials | Wood |