Guhring - 1/2-20 UNF 2BX H8/H9 Thread Limit Modified Bottoming Thread Forming Tap - High Speed Steel, TiCN Finish, 3.937" OAL, Right Hand Thread, Series 4378
Item #: 98856859
Brand: Guhring
Model #: 9043780127000
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 to the bottom of blind holes and have 2 to 2-1/2 threads.
Titanium carbonitride (TiCN) is harder and more wear resistant than TiN. It is used on stainless steels, cast iron and aluminum alloys.
High Speed Steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/2-20 |
| Class of Fit | 2BX |
| Thread Limit | H8/H9 |
| Chamfer | Modified Bottoming |
| Finish/Coating | TiCN |
| Material | High Speed Steel |
| Overall Length (Decimal Inch) | 3.9370 |
| Thread Standard | UNF |
| Series/List | 4378 |
| Thread Direction | Right Hand |
| Shank Diameter (Decimal Inch) | 0.3670 |
| Through Coolant | No |
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