Walter-Prototyp - 1/4-28 UNF, 3 Flute, TiCN Finish, Powdered Metal Spiral Point Tap - Plug Chamfer, Right Hand Thread, 2-1/2" OAL, 16mm Thread Length, 6.48mm Shank Diam, 3B Class of Fit, Series A2320766
Item #: 70846977
Brand: Walter-Prototyp
Model #: 5934197
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.
Titanium carbonitride (TiCN) is harder and more wear-resistant than TiN. It is commonly used on stainless steels, cast iron and aluminum alloys.
Powdered Metal (PM) is tougher and more cost effective than solid carbide. It is commonly used on highly abrasive materials including high silicon aluminums.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/4-28 |
| Number of Flutes | 3 |
| Chamfer | Plug |
| Class of Fit | 3B |
| Finish/Coating | TiCN |
| Material | Powdered Metal |
| Through Coolant | NonThrough Coolant |
| Thread Direction | Right Hand |
| Overall Length (Decimal Inch) | 2.5000 |
| Overall Length (Inch) | 2-1/2 |
| Overall Length (mm) | 63.50 |
| Oversize | No |
| Thread Standard | UNF |
| Thread Length (Decimal Inch) | 0.6300 |
| Thread Length (mm) | 16.00 |
| Series/List | A2320766 |
| Neck Length (Decimal Inch) | 0.4724 |
| Tapping Depth (mm) | 28.00 |
| Shank Diameter (Decimal Inch) | 0.2550 |
| Shank Diameter (mm) | 6.48 |
| Square Length (Inch) | 5/16 |
| Square Size (Decimal Inch) | 0.1910 |
| Square Size (mm) | 4.85 |
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