DORMER - 7mm 135° Spiral Flute High Speed Steel Screw Machine Drill Bit
Item #: 64220254
Brand: DORMER
Model #: 0017920
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.
Spiral flute reamers are used in blind and through-hole operations. They are used to bridge interrupted cuts.
| Product Specifications | |
|---|---|
| Drill Bit Size (Decimal Inch) | 0.2756 |
| Drill Bit Size (mm) | 7.00 |
| 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 |
| Coolant Through | No |
| Flute Length (mm) | 34.00 |
| Flute Length (Decimal Inch) | 1.3396 |
| Overall Length (mm) | 74.00 |
| Overall Length (Decimal Inch) | 2.9156 |
| Flute Length x Diameter Ratio | 2.5xD |
| Point Type | Split Point |
| Shank Diameter (mm) | 7.00 |
| Shank Diameter (Decimal Inch) | 0.2756 |
| Flute Type | Spiral |
| 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 |
| Drill Bit Diameter Tolerance (mm) | 0.000 to -0.022 |
| Specification Number | DIN 1897 |
| Specification Number | DIN 1897 |
| Web Thinning | Web-Thinned |
| Series/List | A120 |
| Length Type | Stub |
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