Rocky Mountain Twist - 1/2" Diam, 12" OAL Oxide High Speed Steel Aircraft Extension Drill Bit
Item #: 57634032
Brand: Rocky Mountain Twist
Model #: 95001963
Features and Benefits
High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Oxide prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and iron based ferrous metals.
| Product Specifications | |
|---|---|
| Drill Bit Size (Inch) | 1/2 |
| Drill Bit Size (Decimal) | 0.5000 |
| Drill Point Angle (Degrees) | 135 |
| Drill Bit Material | High Speed Steel |
| Drill Bit Finish/Coating | Oxide |
| Overall Length (Inch) | 12 |
| Flute Length (Inch) | 4-1/2 |
| Flute Length (Decimal Inch) | 4.5000 |
| Specification Designation | NAS |
| Shank Diameter (Decimal Inch) | 0.5000 |
| Shank Diameter (Inch) | 1/2 |
| Spiral Type | Regular Spiral |
| Flute Type | Spiral |
| Number of Flutes | 2 |
| Cutting Direction | Right Hand |
| Point Type | Split Point |
| Shank Type | Straight |
| Web Configuration | Tapered |
| Drill Bit Diameter Tolerance (Decimal Inch) | +0.0000 to -0.0010 |
| Web Thinning | Web-Thinned |
| Specification Number | NAS 907 |
| Drill Bit Grade | Heavy Duty |
| Through Coolant | No |
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