DORMER - 5/16-18 UNC 3 Flute 2B Bottoming Spiral Flute Tap - Cobalt, Oxide Finish, 72mm OAL, Right Hand Flute, Right Hand Thread, Series E023
Item #: 65659120
Brand: DORMER
Model #: 0569443
Exact Tooling IR#: 04
Features and Benefits
Bottoming chamfers are used for threading blind holes. They have 1 to 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.
Fast Spiral Flutes with 40-53 degree angles are suitable for ductile materials like aluminum and copper; medium to high carbon steels and free machining stainless steels.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 5/16-18 |
| Chamfer | Bottoming |
| Class of Fit | 2B |
| 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) | 2.8368 |
| Overall Length (mm) | 72.00 |
| Helix Angle | 45 |
| Thread Standard | UNC |
| Thread Length (Decimal Inch) | 0.4728 |
| Thread Length (mm) | 12.00 |
| Flute Type | Fast Spiral |
| Series/List | E023 |
| Tapping Depth (Decimal Inch) | 1.2214 |
| Tapping Depth (mm) | 31.00 |
| Shank Diameter (Decimal Inch) | 0.3152 |
| Shank Diameter (mm) | 8.00 |
| Material Application | Alloy Steel; Carbon Steel; Free Machining Stainless Steel; Hardened Steel; Stainless Steel; Steel; Structural Steel |
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