OSG - 1/2-20 UNF, 4 Flute, 45° Helix, Bottoming Chamfer, V Finish, High Speed Steel Spiral Flute STI Tap - Right Hand Flute, 3-13/16" OAL, 0.48" Shank Diam, 1-13/16" Thread Length, 2B Class of Fit, Series 302
Item #: 49148349
Brand: OSG
Model #: 0147908
Exact Tooling IR#: 04
Features and Benefits
Bottoming chamfers are used for threading blind holes. They have 1 to 2 threads.
V is a multi-layered TiCN coating that is harder and has greater wear resistance than TiN. It is used for applications in cast iron, steel, stainless steel, nickel alloys and aluminum. V is a proprietary coating exclusive to OSG Tap and Die, Inc.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/2-20 |
| Class of Fit | 2B |
| Thread Limit | H4 |
| Number of Flutes | 4 |
| Chamfer | Bottoming |
| Finish/Coating | V |
| Overall Length (Inch) | 3-13/16 |
| Helix Angle | 45 |
| Thread Standard | UNF |
| Material | High Speed Steel |
| Flute Direction | Right Hand |
| Thread Length (Inch) | 1-13/16 |
| Series/List | 302 |
| Shank Diameter (Decimal Inch) | 0.4800 |
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