Emuge - 1/2-20 UNF 4 Flute 3B Modified Bottoming Spiral Flute Tap - Cobalt, Oxide Finish, 3-3/8" OAL, Right Hand Flute, Right Hand Thread, Oversize, H3, Series Enorm
Item #: 67855817
Brand: Emuge
Model #: AU503244.5047
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.
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
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) | 1/2-20 |
| Chamfer | Modified Bottoming |
| Class of Fit | 3B |
| Thread Limit | H3 |
| Number of Flutes | 4 |
| Material | Cobalt |
| Finish/Coating | Oxide |
| Thread Direction | Right Hand |
| Flute Direction | Right Hand |
| Through Coolant | NonThrough Coolant |
| Overall Length (Decimal Inch) | 3.3750 |
| Overall Length (Inch) | 3-3/8 |
| Helix Angle | 35 |
| Thread Standard | UNF |
| Oversize | Yes |
| Thread Length (Decimal Inch) | 0.8660 |
| Flute Type | Medium Spiral |
| Series/List | Enorm |
| Shank Diameter (Decimal Inch) | 0.3670 |
| Shank Length (Decimal Inch) | 2.5140 |
| Material Application | Cast Iron; Stainless Steel; Steel |
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