DORMER - 7.7mm 135° Spiral Flute High Speed Steel Screw Machine Drill Bit - Oxide Finish, Right Hand Cut, 37mm Flute Length, 79mm OAL, Split Point, Straight Shank
Item #: 65624843
Brand: DORMER
Model #: 0017999
Exact Tooling IR#: 04
Features and Benefits
High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on 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 iron based ferrous metals.
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 | 135 |
| Drill Bit Material | High Speed Steel |
| Drill Bit Finish/Coating | Oxide |
| Flute Type | Spiral |
| Cutting Direction | Right Hand |
| Shank Type | Straight |
| Flute Length (mm) | 37.00 |
| Flute Length (Decimal Inch) | 1.4578 |
| Overall Length (mm) | 79.00 |
| Overall Length (Decimal Inch) | 3.1126 |
| Flute Length x Diameter Ratio | 2.5xD |
| Point Type | Split Point |
| Shank Diameter (mm) | 7.70 |
| Shank Diameter (Decimal Inch) | 0.3031 |
| Specification Designation | DIN |
| Spiral Type | Regular Spiral |
| Threaded Shank | No |
| Number of Flutes | 2 |
| Web Configuration | Tapered |
| Drill Bit Diameter Tolerance (mm) | 0.000 to -0.022 |
| Specification Number | DIN 1897 |
| Web Thinning | Web-Thinned |
| Series/List | A120 |
| Length Type | Stub |
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