Kennametal - 1/4-20 UNC, 3 Flute, Oxide Finish, HSS-E Spiral Point Tap - Plug Chamfer, Right Hand Thread, 4" OAL, 16mm Thread Length, 6.48mm Shank Diam, Series T820
Item #: 31435506
Brand: Kennametal
Model #: 5608767
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.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
Vanadium high speed steel (HSSE) is made of HSS, 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) | 1/4-20 |
| Number of Flutes | 3 |
| Chamfer | Plug |
| Thread Limit | H3 |
| Finish/Coating | Oxide |
| Material | HSS-E |
| Through Coolant | NonThrough Coolant |
| Thread Direction | Right Hand |
| Overall Length (Inch) | 4 |
| Oversize | No |
| Thread Standard | UNC |
| Thread Length (Decimal Inch) | 0.6300 |
| Thread Length (mm) | 16.00 |
| Series/List | T820 |
| Neck Length (Decimal Inch) | 0.3800 |
| Shank Diameter (Decimal Inch) | 0.2550 |
| Shank Diameter (mm) | 6.48 |
| Square Length (Inch) | 0.3100 |
| Square Size (Decimal Inch) | 0.1890 |
| Square Size (mm) | 4.80 |
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