Walter-Prototyp - 7/16-20 UNF, 4 Flutes, Plug Chamfer, Bright Finish, Cobalt Spiral Point STI Tap - 0.3543" Shank Diam, 0.2756" Square Size, 3B Class of Fit, Series P233509
Item #: 36356301
Brand: Walter-Prototyp
Model #: 6149474
Exact Tooling IR#: 04
Features and Benefits
Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 7/16-20 |
| Class of Fit | 3B |
| Number of Flutes | 4 |
| Chamfer | Plug |
| Finish/Coating | Bright |
| Overall Length (Decimal Inch) | 3.9370 |
| Thread Standard | UNF |
| Material | Cobalt |
| Thread Length (Decimal Inch) | 0.8268 |
| Shank Diameter (Decimal Inch) | 0.3543 |
| Square Length (mm) | 10.00 |
| Square Size (Decimal Inch) | 0.2756 |
| Square Size (mm) | 7.00 |
| Series/List | P233509 |
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