Manufactured to Aerospace Standard 907. The 135 degree split point is self-centering and reduces thrust. Ideal for drilling in mild steel where extra length for reach is required. They have a black oxide surface treatment that is abrasion resistant, reduces chip welding and improves chip flow. Sizes smaller than 1/16 and #52 have the 118 degree standard point.
| Item | Aircraft Extension Drill Bit |
|---|---|
| Drill Bit Size | #31 |
| Overall Length | 12 in |
| Drill Bit Point Angle | 135 deg |
| Material - Machining | High Speed Steel |
| Finish - Machining | Black Oxide |
| Number of Flutes | 2 |
| Shank Type - Machining | Round |
| Flute Length | 1-5/8 in |
| Cutting Direction | Right Hand |
| Drill Bit Point Type | Split Point |
| Country of Origin (subject to change) | China |
| Package Quantity | 1 |