OSG - 7/8-9 UNC 4 Flute Modified Bottoming Spiral Flute Tap - High Speed Steel, Oxide Finish, Right Hand Flute, Right Hand Thread, H3, Series 313NI
Item #: 68575166
Brand: OSG
Model #: 1711401
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 blind holes and have 2 to 2-1/2 threads.
High Speed Steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
Slow Spiral Flutes with 8-20 degree angles are used for tough materials like high nickel alloys, titanium and some series of stainless steels.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 7/8-9 |
| Chamfer | Modified Bottoming |
| Thread Limit | H3 |
| Number of Flutes | 4 |
| Material | High Speed Steel |
| Finish/Coating | Oxide |
| Thread Direction | Right Hand |
| Flute Direction | Right Hand |
| Through Coolant | NonThrough Coolant |
| Helix Angle | 10 |
| Thread Standard | UNC |
| Flute Type | Slow Spiral |
| Series/List | 313NI |
| Material Application | High Nickel Alloy |
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