Kennametal - 1/4-28 UNF 2 Flute 3B Modified Bottoming Spiral Flute Tap - Vanadium High Speed Steel, AlCrTiN Finish, 2-1/2" OAL, Right Hand Flute, Right Hand Thread, H3, Series T692
Item #: 57449498
Brand: Kennametal
Model #: 5705477
Exact Tooling IR#: 04
Features and Benefits
Modified bottoming chamfers are similar to bottoming chamfers, but they are longer and have more teeth. They are used for threading blind holes and have 2 to 2-1/2 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.
Aluminum Chromium Titanium Nitride (AlCrTiN) is a high heat and wear resistant multilayered PVD coating. It is designed for for enhanced tool life and superior thread finish.
Slow Spiral Flutes with 8-20 degree angles are used for tough materials like high nickel alloys, titanium and some series of stainless steels.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/4-28 |
| Chamfer | Modified Bottoming |
| Class of Fit | 3B |
| Thread Limit | H3 |
| Number of Flutes | 2 |
| Material | Vanadium High Speed Steel |
| Finish/Coating | AlCrTiN |
| Thread Direction | Right Hand |
| Flute Direction | Right Hand |
| Through Coolant | NonThrough Coolant |
| Overall Length (Decimal Inch) | 2.5000 |
| Overall Length (Inch) | 2-1/2 |
| Overall Length (mm) | 63.40 |
| Helix Angle | 10 |
| Thread Standard | UNF |
| Thread Length (Decimal Inch) | 0.4400 |
| Thread Length (mm) | 11.10 |
| Flute Type | Slow Spiral |
| Series/List | T692 |
| Neck Length (Decimal Inch) | 0.5600 |
| Tapping Depth (Decimal Inch) | 1.0000 |
| Tapping Depth (mm) | 26.00 |
| Shank Diameter (Decimal Inch) | 0.2550 |
| Shank Diameter (mm) | 6.48 |
| Material Application | Nickel Alloys |
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