Aircraft Extension Drill, Drill Bit Size #21, Drill Bit Point Angle 135 Degrees , Split Point, High Speed Steel, Bright (Uncoated), 21 Degrees to 34 Degrees , Material Grade - Machining High Performance, Maximum Drilling Depth 5/8 in, Wire, 4xD
| Item | Aircraft Extension Drill |
|---|---|
| Overall Length | 6 in |
| Drill Bit Point Angle | 135 deg |
| Drill Bit Size | #21 |
| Number of Flutes | 2 |
| Shank Dia. | 4.04 mm |
| Material - Machining | High Speed Steel |
| Cutting Direction | Right Hand |
| Finish - Machining | Bright |
| Shank Type - Machining | Straight |
| Depth:Dia. Ratio | 4 xD |
| Flute Length | 2-1/8 in |
| Application | For Alloy Steel, Carbon Steel And Cast Iron |
| Standards | NAS 907 Type B |
| List Number | 3957 |
| Decimal Equivalent | 0.159 |
| Drill Bit Dimension Type | Wire |
| Size | #21 |
| Number of Pieces | 1 |
| Flute Type | Spiral |
| Shank Length | 3-7/8 in |
| Measurement System | Wire |
| Shank Size | 0.159 |
| Diameter | 0.159 |
| Drill Style | Aircraft Extension Drill |
| Coolant Fed | Non-Coolant Through |
| Primary Material Application | Brass, Bronze, Copper, Aluminum, Steel |
| Primary Material Application ISO Code | P, N |
| Spiral Direction | Right Hand |
| Helix Angle | 21 Degrees to 34 Degrees |
| Aircraft Drill | Yes |
| Drill Diameter Tolerance | +0.0000 in/-0.0007 in |
| Material Grade - Machining | High Performance |
| Series | 3957-6 |
| Drill Point Length | 0.0329 in |
| Drill Length Class | Aircraft Extension |
| Drill Bit Point Type | Split Point |
| Secondary Material Application ISO Code | M, K |
| Secondary Material Application | Cast Iron, Stainless Steel |
| Maximum Drilling Depth | 5/8 in |
| Helix Angle - Minimum | 21 deg |
| Helix Angle - Maximum | 34 deg |
| Wire Rope Length | 6 in |
| Length | 6 in |
| Country of Origin (subject to change) | United States |
| Package Quantity | 1 |