Kennametal - 8mm Body, 5mm Step Diam, 0.315" Diam Straight Shank, Solid Carbide Subland Step Drill Bit
Item #: 58475799
Brand: Kennametal
Model #: 4175271
Features and Benefits
Straight shanks are used for general purpose applications. The shank is smaller than the drill bit diameter. They are used with portable drills and drill presses on ferrous and non-ferrous materials.
Solid carbide provides better rigidity than High Speed Steel (HSS). It is extremely heat resistant and used for high speed applications on cast iron, nonferrous materials, plastics and other tough-to-machine materials.
Multilayer Titanium Aluminum Nitride (TiAlN) is a blended coating that is more efficient than TIN. It offers a high level of wear resistance at higher cutting speeds and used on high alloy steels and cast iron.
| Product Specifications | |
|---|---|
| Drill Body Size (mm) | 8 |
| Drill Body Size (Decimal Inch) | 0.3150 |
| Step Diameter (mm) | 5.00 |
| Step Diameter (Decimal Inch) | 0.1969 |
| Shank Type | Straight |
| Shank Diameter (Decimal Inch) | 0.3150 |
| Drill Bit Material | Solid Carbide |
| Drill Bit Finish/Coating | Multilayer TiAlN |
| Overall Length (mm) | 79.00 |
| Overall Length (Decimal Inch) | 3.1102 |
| Step Length (mm) | 12.98 |
| Step Length (Decimal Inch) | 0.5111 |
| Specification Designation | DIN |
| Flute Length (mm) | 28.70 |
| Flute Length (Decimal Inch) | 1.1299 |
| Shank Length (Decimal Inch) | 1.4173 |
| Shoulder Included Angle | 90 |
| Drill Point Angle | 135 |
| Specification Number | DIN 6535 |
| Drill Bit Diameter Tolerance (mm) | 0.004 to 0.016 |
| Series/List | B731A-HP |
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