Irwin - 7/16" 135° High Speed Steel Jobber Drill - Oxide/Gold Finish, Spiral Flute, Straight Shank, 5-1/2" OAL
Item #: 55268304
Brand: Irwin
Model #: 73328
Exact Tooling IR#: 04
Features and Benefits
High speed steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
Oxide/gold finish provides a polished finish and prevents chip building, galling and welding on a workpiece. It is commonly used on low carbon, stainless steel and ferrous metals.
Spiral flutes are constructed with a higher flute angle to remove chips more easily.
| Product Specifications | |
|---|---|
| Drill Bit Size (Inch) | 7/16 |
| Drill Bit Size (Decimal Inch) | 0.4375 |
| Drill Point Angle | 135 |
| Drill Bit Material | High Speed Steel |
| Drill Bit Finish/Coating | Oxide/Gold |
| Flute Type | Spiral |
| Shank Type | Straight |
| Coolant Through | No |
| Flute Length (Inch) | 4-1/16 |
| Flute Length (mm) | 103.19 |
| Flute Length (Decimal Inch) | 4.0625 |
| Overall Length (mm) | 139.70 |
| Overall Length (Decimal Inch) | 5.5000 |
| Overall Length (Inch) | 5-1/2 |
| Shank Diameter (mm) | 11.11 |
| Shank Diameter (Inch) | 7/16 |
| Maximum Drilling Depth (Decimal Inch) | 4.0625 |
| Maximum Drilling Depth (mm) | 103.19 |
| Maximum Drilling Depth (Inch) | 4.0625 |
| Spiral Type | Regular Spiral |
| Specification Designation | ANSI |
| Number of Flutes | 1 |
| Series/List | 733/731 |
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