| Manufacturer Part Number | D1634021 |
| Diameter (Decimal Inch) | 0.3281" |
| Diameter (Inch) | 21/64" |
| Diameter (mm) | 8.33mm |
| Shank Diameter (Decimal Inch) | 0.3281" |
| Shank Diameter (Inch) | 21/64" |
| Shank Diameter (mm) | 8.33mm |
| Overall Length (Decimal Inch) | 12.0000" |
| Overall Length (Inch) | 12" |
| Overall Length (mm) | 304.80mm |
| Flute Length (Decimal Inch) | 3.3125" |
| Flute Length (Inch) | 3-5/16" |
| Flute Length (mm) | 84.14mm |
| Point Length (Decimal Inch) | 0.0680" |
| Point Length (mm) | 1.73mm |
| Point Angle (Degree) | 135 Degree |
| 30 Degree | 30 Degree |
| Number of Flutes | 2 |
| Coating | Oxide |
| Material | HSS |
| Application | P |
| Cutting Direction | Right |
| Product Type | Aircraft Extension Drill |