Emuge - #12-28 UNF 3 Flute 3B Modified Bottoming Spiral Flute Tap - Cobalt, Oxide Finish, 3.15" OAL, Right Hand Flute, Right Hand Thread, Series Enorm-VA
Item #: 02775047
Brand: Emuge
Model #: BU503210.5042
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) | #12-28 |
| Chamfer | Modified Bottoming |
| Class of Fit | 3B |
| Number of Flutes | 3 |
| Material | Cobalt |
| Finish/Coating | Oxide |
| Thread Direction | Right Hand |
| Flute Direction | Right Hand |
| Through Coolant | NonThrough Coolant |
| Overall Length (Decimal Inch) | 3.1500 |
| Helix Angle | 39 |
| Thread Standard | UNF |
| Oversize | No |
| Thread Length (Decimal Inch) | 0.3940 |
| Flute Type | Medium Spiral |
| Series/List | Enorm-VA |
| Tapping Depth (Decimal Inch) | 1.1420 |
| Shank Diameter (Decimal Inch) | 0.2200 |
| Material Application | Acid-Resistant Steel; Alloyed Steel Castings; Stainless Steel; Tool Steel |
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