 
        21/64″ Diam 3-7/16″ Flute Length 135° High Speed Steel Aircraft Extension Drill Oxide Finish, Straight-Cylindrical Shank, Split Point, Self-Centering, Series 1803
Item #: 57641482
Brand: Cle-Line
Model #: C23638
Product Specifications
| Drill Bit Size (Inch) | 21/64 | 
| Overall Length (Inch) | 6 | 
| Tool Material | High Speed Steel | 
| Coating/Finish | Oxide | 
| Series | 1803 | 
| Drill Point Angle (Degrees) | 135 | 
| Drill Bit Size (Decimal Inch) | 0.3281 | 
| Shank Type | Straight-Cylindrical | 
| Flute Type | Spiral | 
| Flute Length (Inch) | 3-7/16 | 
| Flute Length (Decimal Inch) | 3.4375 | 
| Cutting Direction | Right Hand | 
| Self-Centering | Yes | 
| Point Type | Split | 
| Drill Bit Diameter Tolerance | +0.0000 to -0.0010 in | 
| Shank Diameter (Inch) | 21/64 | 
| Shank Diameter (Decimal Inch) | 0.3281 | 
| Number of Flutes | 2 | 
| Web Thinning | Web-Thinned | 
| Web Configuration | Tapered | 
| Tool Performance | General Purpose | 
| Standards | ASME B94.11M | 
