135 Degree NAS 907 Type B General Purpose Aircraft Extension Drill Cleveland 3957-12 Bright HSS 21/64
| Item | Extra Long Drill Bit |
|---|---|
| Shank Type | Straight |
| Material | HSS |
| Point Angle | 135 |
| Shank Dia. | 21/64 in |
| Cutting Direction | Right Hand |
| Flute Length | 3-5/16 in |
| Maximum Drilling Depth | 3-5/16 in |
| Overall Length | 12 in |
| Number of Flutes | 2 |
| Drill Bit Size | 21/64 in |
| Drill Bit Finish | Bright |
| Coolant Through | No |
| Decimal Equivalent | 0.3281 |
| Point Type | Split |
| Flute Type | Spiral |
| Application | For Drilling Cast Iron, Carbon Steel, Alloy Steel, Die Steel, Stainless Steels, Hardened Steel Under 50 HrC and Titanium Alloys |
| Shank Type - Machining | Straight |
| Drill Bit Dimension Type | Fractional Inch |
| Depth:Dia. Ratio | 4 xD |
| Grade | Heavy Duty |
| Depth x Dia. Ratio | 4 xD |
| Drill Bit Point Angle | 135 Degrees |
| Drill Bit Material | Steel |
| Standards | Not Rated |
| List Number | 3957-12 |
| Shank Length | 8-11/16 in |
| Shank Size | 0.3281 |
| Drill Style | Aircraft Extension Drill |
| Measurement System | Fractional Inch |
| Diameter | 0.328125 |
| Left/Right Hand | Right |
| Coolant Fed | Non-Coolant Through |
| Series | 3957-12 |
| Finish - Machining | Bright |
| Secondary Material Application | Cast Iron, Stainless Steel |
| Spiral Direction | Right Hand |
| Secondary Material Application ISO Code | M, K |
| Drill Diameter Tolerance | +0.0000 in /-0.0010 in |
| Primary Material Application ISO Code | P, N |
| Material - Machining | High Speed Steel |
| Drill Bit Point Type | Split Point |
| Aircraft Drill | Yes |
| Drill Length Class | Extra Long |
| Helix Angle | 28 deg |
| Material Grade - Machining | High Performance |
| Drill Point Length | 0.068 in |
| Primary Material Application | Brass, Bronze, Copper, Aluminum, Steel |
| Package Quantity | 1 |