Kennametal - 5/16-18 UNC 4 Flute H3 Bright Finish High Speed Steel Hand Extension Tap - Bottoming Chamfer, 6" OAL, 2B/3B Class of Fit
Item #: 40389934
Brand: Kennametal
Model #: 4131079
Exact Tooling IR#: 04
Features and Benefits
Bottoming chamfers are used for threading blind holes to the bottom. They have 1 to 2 threads.
Hand taps are used to cut threads in blind or through holes. They are used by hand or in general purpose machine operations.
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 | 5/16-18 |
| Overall Length (Inch) | 6 |
| Overall Length (Decimal Inch) | 6.000 |
| Chamfer | Bottoming |
| Thread Limit | H3 |
| Class of Fit | 2B/3B |
| Number of Flutes | 4 |
| Tap Type | Hand |
| Finish/Coating | Bright |
| Flute Direction | Right Hand |
| Thread Standard | UNC |
| Material | High Speed Steel |
| Thread Length (Decimal) | 0.6690 |
| Shank Diameter (Decimal Inch) | 0.3180 |
| Shank Size Type | Regular |
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