National Twist Drill - 12.5mm 118° High Speed Steel Jobber Drill - Oxide Finish, Right Hand Cut, Spiral Flute, Straight Shank, 151mm OAL
Item #: 58859810
Brand: National Twist Drill
Model #: 012748AW
Exact Tooling IR#: 04
Features and Benefits
High speed steel (HSS) provides good wear resistance and can be used in general purpose applications for 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 ferrous metals.
Spiral flutes are constructed with a higher flute angle to remove chips more easily.
| Product Specifications | |
|---|---|
| Drill Bit Size (mm) | 12.50 |
| Drill Bit Size (Decimal Inch) | 0.4921 |
| Drill Point Angle | 118 |
| Drill Bit Material | High Speed Steel |
| Drill Bit Finish/Coating | Oxide |
| Flute Type | Spiral |
| Cutting Direction | Right Hand |
| Shank Type | Straight |
| Coolant Through | No |
| Flute Length (Inch) | 3-31/32 |
| Flute Length (mm) | 100.81 |
| Flute Length (Decimal Inch) | 3.9688 |
| Overall Length (mm) | 151.00 |
| Overall Length (Decimal Inch) | 5.9449 |
| Web Configuration | Tapered |
| Drill Bit Diameter Tolerance (Decimal Inch) | +0.0000 to -0.0010 |
| Web Thinning | Web-Thinned |
| Series/List | 206M |
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