Balax - 1/4-20 UNC H8 Bright Finish High Speed Steel Thread Forming Extension Tap - Bottoming Chamfer, 4" OAL, 1" Thread Length, 2B Class of Fit, Series BXEXT
Item #: 49713779
Brand: Balax
Model #: 12708
Exact Tooling IR#: 04
Features and Benefits
Bottoming chamfers are used for threading blind holes to the bottom. They have 1 to 2 threads.
Thread forming taps do not cut threads; rather, they form threads by displacing material. They generate threads without producing chips. They are used on mild steels, carbon steels and low to medium alloys
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
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 | 1/4-20 |
| Overall Length (Inch) | 4 |
| Overall Length (Decimal Inch) | 4.000 |
| Chamfer | Bottoming |
| Thread Limit | H8 |
| Class of Fit | 2B |
| Number of Flutes | 0 |
| Tap Type | Thread Forming |
| Finish/Coating | Bright |
| Flute Direction | Right Hand |
| Thread Standard | UNC |
| Material | High Speed Steel |
| Thread Length (Inch) | 1 |
| Square Length (Inch) | 5/16 |
| Series/List | BXEXT |
| Shank Size Type | Regular |
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