Kennametal - 7/16-20 UNF 3 Flute 3B Modified Bottoming Spiral Flute Tap - Vanadium High Speed Steel, TiN/CrC/C Finish, 100mm OAL, Right Hand Flute, Right Hand Thread, H3, Series T686
Item #: 57449878
Brand: Kennametal
Model #: 5689989
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.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 7/16-20 |
| Chamfer | Modified Bottoming |
| Class of Fit | 3B |
| Thread Limit | H3 |
| Number of Flutes | 3 |
| Material | Vanadium High Speed Steel |
| Finish/Coating | TiN/CrC/C |
| Thread Direction | Right Hand |
| Flute Direction | Right Hand |
| Through Coolant | NonThrough Coolant |
| Overall Length (Decimal Inch) | 3.9400 |
| Overall Length (mm) | 100.00 |
| Helix Angle | 25 |
| Thread Standard | UNF |
| Thread Length (mm) | 18.00 |
| Flute Type | Medium Spiral |
| Series/List | T686 |
| Neck Length (Decimal Inch) | 0.9000 |
| Tapping Depth (Decimal Inch) | 1.6100 |
| Tapping Depth (mm) | 41.00 |
| Shank Diameter (Decimal Inch) | 0.3230 |
| Shank Diameter (mm) | 8.20 |
| Material Application | Aluminum Cast Alloys |
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