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- #21 Diameter
- 12 in Overall Length
- HSS Material
- 135 degree Point Angle
- Spiral Flute Type
| Drill Style | Aircraft Extension |
| Overall Length | 12 in |
| No. of Flutes | 2 |
| Shank Size - Metric | 4.04 mm |
| Shank Length | 9.875 in |
| Flute Length - Metric | 53.97 mm |
| Shank Length - Metric | 250.82 mm |
| Material | HSS |
| Shank Size | 0.159 in |
| Shank Type | Straight |
| Coating | Steam Oxide |
| Diameter - Wire | #21 |
| Point Angle | 135 degree |
| Diameter - Decimal | 0.159 in |
| Flute Length | 2.125 in |
| Weight | 0.0 LB |
