National Twist Drill - 4.9mm 140° Solid Carbide Jobber Drill
Item #: 58824178
Brand: National Twist Drill
Model #: 027203AW
Features and Benefits
Solid carbide provides better rigidity than high speed steel. It is extremely heat resistant and used for high speed applications on cast iron, nonferrous materials, plastics and other tough-to-machine materials.
Aluminum titanium nitride (AlTiN) is one of the most abrasive-resistant and hardest of the coatings. It is commonly used for machining aircraft and aerospace material, nickel alloys, stainless steel, titanium, cast iron and carbon steel.
Spiral flutes are constructed with a higher flute angle to remove chips more easily.
| Product Specifications | |
|---|---|
| Drill Bit Size (mm) | 4.90 |
| Drill Bit Size (Decimal Inch) | 0.1929 |
| Drill Point Angle | 140 |
| Drill Bit Material | Solid Carbide |
| Drill Bit Finish/Coating | AlTiN |
| Flute Type | Spiral |
| Cutting Direction | Right Hand |
| Shank Type | Straight |
| Coolant Through | Coolant Through |
| Flute Length (mm) | 28.00 |
| Flute Length (Decimal Inch) | 1.1024 |
| Overall Length (mm) | 66.00 |
| Overall Length (Decimal Inch) | 2.5984 |
| Shank Diameter (mm) | 6.00 |
| Shank Diameter (Decimal Inch) | 0.2362 |
| Web Configuration | Tapered |
| Drill Bit Diameter Tolerance (Decimal Inch) | +0.0000 to -0.0007 |
| Number of Flutes | 2 |
| Web Thinning | Web-Thinned |
| Material Grade | Micrograin |
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