OSG - M20x2.50, 4 Flute, 45° Helix, Modified Bottoming Chamfer, Oxide Finish, Vanadium High Speed Steel Spiral Flute STI Tap - Right Hand Flute, 4-29/32" OAL, 0.76" Shank Diam, 2-7/32" Thread Length, 6H Class of Fit, Series 343STI
Item #: 73787988
Brand: OSG
Model #: 34301301
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 (mm) | M20x2.50 |
| Class of Fit | 6H |
| Thread Limit | D5 |
| Number of Flutes | 4 |
| Chamfer | Modified Bottoming |
| Finish/Coating | Oxide |
| Overall Length (Inch) | 4-29/32 |
| Helix Angle | 45 |
| Material | Vanadium High Speed Steel |
| Flute Direction | Right Hand |
| Thread Length (Inch) | 2-7/32 |
| Series/List | 343STI |
| Shank Diameter (Decimal Inch) | 0.7600 |
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