Walter-Titex - 1/4-20 UNC, 3 Flute, 40° Helix, Modified Bottoming Chamfer, Oxide Finish, Cobalt Spiral Flute STI Tap - Right Hand Flute, 2-23/32" OAL, 0.318" Shank Diam, 3/4" Thread Length, 3B Class of Fit, Series A225030
Item #: 70597588
Brand: Walter-Titex
Model #: 5347756
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.
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.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/4-20 |
| Class of Fit | 3B |
| Number of Flutes | 3 |
| Chamfer | Modified Bottoming |
| Finish/Coating | Oxide |
| Overall Length (Decimal Inch) | 2.7188 |
| Overall Length (Inch) | 2-23/32 |
| Overall Length (mm) | 69.06 |
| Helix Angle | 40 |
| Thread Standard | UNC |
| Material | Cobalt |
| Flute Direction | Right Hand |
| Thread Length (Decimal Inch) | 0.7480 |
| Thread Length (mm) | 19.00 |
| Series/List | A225030 |
| Shank Diameter (Decimal Inch) | 0.3180 |
| Shank Diameter (mm) | 8.08 |
| Material Application | Cast Steel; Stainless Steel; Steel |
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