| Decimal Equivalent | : | 0.3125 in |
| Drill Size | : | 5/16 in |
| Flute Length | : | 3-3/16 in |
| Overall Length | : | 4-1/2 in |
| Package QTY | : | 1 |
- Designed for difficult bolt extractor jobs
- 135° split point - eliminates center punching and walking
- Special gold surface treatment for maximum lubricity
- Heavy duty construction of high molybdenum tool steel allows drilling of hard and tough materials like broken studs, set screws, etc.
- Left hand spiral can loosen bolts, eliminating the need for an extractor
- Meets or exceeds NAS 907 Standards