#21 2-1/8″ Flute Length 135° High Speed Steel Aircraft Extension Drill Oxide Finish, 0.159″ Diam Straight-Cylindrical Shank, Split Point, Self-Centering, Series 1805
Item #: 57644544
Brand: Cle-Line
Model #: C23781
Product Specifications
| Drill Bit Size (Wire) | #21 |
| Overall Length (Inch) | 12 |
| Tool Material | High Speed Steel |
| Coating/Finish | Oxide |
| Series | 1805 |
| Drill Point Angle (Degrees) | 135 |
| Drill Bit Size (Decimal Inch) | 0.1590 |
| Shank Type | Straight-Cylindrical |
| Flute Type | Spiral |
| Flute Length (Inch) | 2-1/8 |
| Flute Length (Decimal Inch) | 2.1250 |
| Cutting Direction | Right Hand |
| Self-Centering | Yes |
| Point Type | Split |
| Drill Bit Diameter Tolerance | +0.0000 to -0.0007 in |
| Shank Diameter (Decimal Inch) | 0.1590 |
| Number of Flutes | 2 |
| Web Thinning | Web-Thinned |
| Web Configuration | Tapered |
| Tool Performance | General Purpose |
| Standards | ASME B94.11M |
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