Walter-Prototyp - 1/4-28 UNF, 3 Flute, Hardlube Finish, Cobalt Spiral Point Tap - Plug Chamfer, Right Hand Thread, 2-1/2" OAL, 16mm Thread Length, 6.48mm Shank Diam, 3B Class of Fit, Series A2320302
Item #: 36367670
Brand: Walter-Prototyp
Model #: 5080569
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.
Hardlube is a multi-layered coating composed of titanium aluminum nitride and tungsten carbide/carbon (TiAIN/WC/C). It is stronger and more wear resistant than TIAlN. It is commonly used on steel, stainless steel, nickel and cobalt.
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/4-28 |
| Number of Flutes | 3 |
| Chamfer | Plug |
| Class of Fit | 3B |
| Finish/Coating | Hardlube |
| Material | Cobalt |
| 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 |
| Material Grade | M35 |
| Thread Length (Decimal Inch) | 0.6300 |
| Thread Length (mm) | 16.00 |
| Series/List | A2320302 |
| 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 |