OSG - 7.7mm 140° Spiral Flute Solid Carbide Screw Machine Drill Bit
Item #: 81686552
Brand: OSG
Model #: 3320770
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.
WD1 is a multi-layer coating that is harder and more resistant to heat than TiAIN. It is commonly used on medium-to high-carbon steel and other difficult-to-machine materials. WD1 is a proprietary coating exclusive to OSG Tap and Die, Inc.
Spiral flutes are constructed of a higher flute angle to remove chips easier.
| Product Specifications | |
|---|---|
| Drill Bit Size (Decimal Inch) | 0.3031 |
| Drill Bit Size (mm) | 7.70 |
| Drill Point Angle | 140 |
| Drill Bit Material | Solid Carbide |
| Drill Bit Finish/Coating | WD1 |
| Flute Type | Spiral |
| Cutting Direction | Right Hand |
| Shank Type | Straight |
| Flute Length (mm) | 41.00 |
| Overall Length (mm) | 79.00 |
| Flute Length x Diameter Ratio | 2xD |
| Shank Diameter (mm) | 8.00 |
| Specification Designation | DIN |
| Spiral Type | Regular Spiral |
| Number of Flutes | 2 |
| Web Thinning | R-Thinned |
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