DORMER - 3/8-24 UNF, 3 Flute, Oxide Finish, Cobalt Spiral Point Tap - Bottoming Chamfer, Right Hand Thread, 100mm OAL, 20mm Thread Length, 10mm Shank Diam, 2B Class of Fit, Series EP31
Item #: 65676140
Brand: DORMER
Model #: 0138519
Exact Tooling IR#: 04
Features and Benefits
Bottoming chamfers are used for threading blind holes. They have 1 to 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.
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 3/8-24 |
| Number of Flutes | 3 |
| Chamfer | Bottoming |
| Class of Fit | 2B |
| Finish/Coating | Oxide |
| Material | Cobalt |
| Through Coolant | NonThrough Coolant |
| Thread Direction | Right Hand |
| Overall Length (Decimal Inch) | 3.9400 |
| Overall Length (mm) | 100.00 |
| Oversize | No |
| Thread Standard | UNF |
| Thread Length (Decimal Inch) | 0.7880 |
| Thread Length (mm) | 20.00 |
| Series/List | EP31 |
| Tapping Depth (mm) | 39.00 |
| Shank Diameter (Decimal Inch) | 0.3940 |
| Shank Diameter (mm) | 10.00 |
| Square Size (Decimal Inch) | 0.3152 |
| Square Size (mm) | 8.00 |
| Material Application | Alloy Steel; Carbon Steel; Cast Iron; Free Machining Stainless Steel; Hardened Steel; Stainless Steel; Steel; Structural Steel |
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