Guhring - Letter E (1/4) 140° Spiral Flute Solid Carbide Screw Machine Drill Bit - nano-A Finish, Right Hand Cut, 34mm Flute Length, 79mm OAL, VA Point, Straight Shank, Through Coolant
Item #: 66519174
Brand: Guhring
Model #: 9085100063500
Exact Tooling IR#: 04
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.
nano-A combines TiAlN and AlTiN coatings in a micro-layer structure that is harder and more wear resistant. It is used at high speeds on alloy steels, stainless steels and aerospace materials. nano-A is a proprietary coating exclusive to Guhring, Inc.
Spiral flutes are constructed of a higher flute angle to remove chips easier.
| Product Specifications | |
|---|---|
| Drill Bit Size (Decimal Inch) | 0.2500 |
| Drill Bit Size (Letter) | E |
| Drill Bit Size (Inch) | 1/4 |
| Drill Point Angle | 140 |
| Drill Bit Material | Solid Carbide |
| Drill Bit Finish/Coating | nano-A |
| Flute Type | Spiral |
| Cutting Direction | Right Hand |
| Shank Type | Straight |
| Flute Length (mm) | 34.00 |
| Flute Length (Decimal Inch) | 1.3386 |
| Overall Length (mm) | 79.00 |
| Overall Length (Decimal Inch) | 3.1102 |
| Flute Length x Diameter Ratio | 3xD |
| Point Type | VA Point |
| Shank Diameter (mm) | 8.00 |
| Shank Diameter (Decimal Inch) | 0.3150 |
| Specification Designation | DIN |
| Spiral Type | Regular Spiral |
| Threaded Shank | No |
| Number of Flutes | 2 |
| Web Configuration | Tapered |
| Drill Bit Diameter Tolerance (mm) | +0.006 to +0.021 |
| Drill Tip Finish/Coating | nano-A |
| Specification Number | DIN 6537 |
| Drill Bit Grade | High Performance |
| Material Grade | DK460UF |
| Series/List | 8510 |
| Length Type | Regular |
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