Letter E (1/4″)2-3/4″ Flute Length 135° High Speed Steel Aircraft Extension Drill Oxide Finish, Straight-Cylindrical Shank, Split Point, Self-Centering, Series 621
Item #: 57789869
Brand: Irwin
Model #: 62116
Product Specifications
| Drill Bit Size (Inch) | 1/4 |
| Drill Bit Size (Letter) | E |
| Overall Length (Inch) | 12 |
| Tool Material | High Speed Steel |
| Coating/Finish | Oxide |
| Series | 621 |
| Drill Point Angle (Degrees) | 135 |
| Drill Bit Size (Decimal Inch) | 0.2500 |
| Shank Type | Straight-Cylindrical |
| Flute Type | Spiral |
| Flute Length (Inch) | 2-3/4 |
| Flute Length (Decimal Inch) | 2.7500 |
| Cutting Direction | Right Hand |
| Self-Centering | Yes |
| Point Type | Split |
| Shank Diameter (Inch) | 1/4 |
| Shank Diameter (Decimal Inch) | 0.2500 |
| Web Thinning | Web-Thinned |
| Web Configuration | Tapered |
| Tool Performance | General Purpose |
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