#40 1 –3/8 " Flute Length 135° High Performance High Speed Steel Aircraft Extension Drill Bright/Uncoated, 0.098 " Diam Straight –Cylindrical Shank, Split Point, Self –Centering, Series 3957 –12
Item #: 74329640
Brand: Cleveland
Model #: C13244
Product Specifications
| Drill Bit Size (Wire) | #40 |
| Overall Length (Inch) | 12 |
| Tool Material | High Speed Steel |
| Coating/Finish | Bright/Uncoated |
| Series | 3957-12 |
| Drill Point Angle (Degrees) | 135 |
| Drill Bit Size (Decimal Inch) | 0.0980 |
| Shank Type | Straight-Cylindrical |
| Flute Type | Spiral |
| Flute Length (Inch) | 1-3/8 |
| Flute Length (Decimal Inch) | 1.3750 |
| Cutting Direction | Right Hand |
| Self-Centering | Yes |
| Point Type | Split |
| Drill Bit Diameter Tolerance | +0.0000 to -0.0005 in |
| Shank Diameter (Decimal Inch) | 0.0980 |
| Number of Flutes | 2 |
| Web Thinning | Web-Thinned |
| Web Configuration | Tapered |
| Tool Performance | High Performance |
| Standards | NAS 907 Type B |
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