Chicago-Latrobe 912 NAS-type aircraft extension drill bits, manufactured to aerospace specifications for long-reach drilling. These 1/8" drill bits are made from premium high-speed steel (HSS) with a black oxide finish for increased wear resistance and lubricity. The 135° P3 split point is self-centering to reduce thrust and improve penetration; round shanks allow compatibility with many toolholding systems. Pack of 12 extended-shank bits for carbon steel, alloy steel and cast iron applications and specialized aerospace use. Manufacturer: Greenfield Industries. Model/Item number: 11100.
- Made in the USA
- Black oxide finish for increased wear resistance and added lubricity standard from stock
- Manufactured to NAS 907 Type B geometry aerospace specifications.
- 135 degree P3 split point is self-centering for reduced thrust and easier penetration
- Manufactured from premium high-speed steel
- 12" extended shanks for longreach applications
Specifications:
| Materials & Construction |
| Color | Black Oxide |
| Material | High Speed Steel (HSS) |
| Outer Material | High Speed Steel (HSS) |
| Product Details |
| Cutting Angle String | 135 Degrees |
| Finish Type | Black Oxide |
| Item model number | 11100 |
| Material | High Speed Steel (HSS) |
| Shank Type | Round |
| Sizing & Dimensions |
| Height | 0.4 inches |
| Length | 7.4 inches |
| Product Dimensions | 7.4 x 0.9 x 0.4 inches; 4.16 ounces |
| Size | 1/8" |
| Weight | 4.16 ounces |
| Width | 0.9 inches |
| Technical Specifications |
| Cutting Angle | 135 Degrees |
| Shank Type | Round |