OSG - 1/4-28 UNF 3 Flute 2B Bottoming Spiral Flute Tap - Vanadium High Speed Steel, TiCN Finish, 2-1/2" OAL, Right Hand Flute, Right Hand Thread, H4, Series 303
Item #: 76169051
Brand: OSG
Model #: 0137408
Exact Tooling IR#: 04
Features and Benefits
Bottoming chamfers are used for threading blind holes. They have 1 to 2 threads.
Vanadium High Speed Steel (HSSE) is made of high speed steel, carbon, vanadium carbide and other alloys to increase abrasive wear resistance and toughness. It is commonly used in general applications on stainless steels and high silicon aluminums.
Titanium carbonitride (TiCN) is harder and more wear resistant than TiN. It is commonly used on stainless steels, cast iron and aluminum alloys.
Fast Spiral Flutes with 40-53 degree angles are suitable for ductile materials like aluminum and copper; medium to high carbon steels and free machining stainless steels.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/4-28 |
| Chamfer | Bottoming |
| Class of Fit | 2B |
| Thread Limit | H4 |
| Number of Flutes | 3 |
| Material | Vanadium High Speed Steel |
| Finish/Coating | TiCN |
| Thread Direction | Right Hand |
| Flute Direction | Right Hand |
| Through Coolant | NonThrough Coolant |
| Overall Length (Inch) | 2-1/2 |
| Helix Angle | 45 |
| Thread Standard | UNF |
| Thread Length (Inch) | 1 |
| Flute Type | Fast Spiral |
| Series/List | 303 |
| Shank Diameter (Decimal Inch) | 0.2550 |
| Material Application | Hardened Steel; Low Carbon Steel; Medium Carbon Steel; Stainless Steel |
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