OSG - M8x1.25 Metric Coarse H7 Bright Finish Solid Carbide Thread Forming Extension Tap - Bottoming Chamfer, 5-29/32" OAL, Series 357
Item #: 78403276
Brand: OSG
Model #: 8315639
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.
Solid carbide provides better rigidity than high speed steel. It is extremely heat-resistant and used for high speed applications on cast iron, nonferrous materials, plastics and other tough-to-machine materials.
| Product Specifications | |
|---|---|
| Thread Size | M8x1.25 |
| Overall Length (Inch) | 5.9063 |
| Overall Length (Decimal Inch) | 5.906 |
| Chamfer | Bottoming |
| Thread Limit | H7 |
| Number of Flutes | 0 |
| Tap Type | Thread Forming |
| Finish/Coating | Bright |
| Flute Direction | Right Hand |
| Thread Standard | Metric Coarse |
| Material | Solid Carbide |
| Thread Length (Decimal) | 1.1811 |
| Thread Direction | Right Hand |
| Shank Diameter (Decimal Inch) | 0.2441 |
| Square Size (Decimal Inch) | 0.1969 |
| Material Application | Aluminum; Cast Aluminum; Copper Alloy |
| Series/List | 357 |
| Shank Size Type | Reduced |
| Shank Diameter (mm) | 6.20 |
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