Sandvik Coromant - 7/8-9 UNC 4 Flute 2B Modified Bottoming Spiral Flute Tap - Powdered Metal, SmoothTop Finish, 140mm OAL, Right Hand Flute, Right Hand Thread, Series CoroTap 300
Item #: 49379969
Brand: Sandvik Coromant
Model #: 6182428
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.
Powdered Metal (PM) is tougher and more cost effective than solid carbide. It is commonly used on highly abrasive materials including high silicon aluminums.
SmoothTop is a coating that has low friction and adhesion. It helps reduce risk of cutting-edge chipping and improves surface quality, tool life and chip formation.
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) | 7/8-9 |
| Chamfer | Modified Bottoming |
| Class of Fit | 2B |
| Number of Flutes | 4 |
| Material | Powdered Metal |
| Finish/Coating | SmoothTop |
| Thread Direction | Right Hand |
| Flute Direction | Right Hand |
| Through Coolant | NonThrough Coolant |
| Overall Length (Decimal Inch) | 5.5118 |
| Overall Length (mm) | 140.00 |
| Helix Angle | 48 |
| Thread Standard | UNC |
| Thread Length (Decimal Inch) | 0.9843 |
| Thread Length (mm) | 25.00 |
| Flute Type | Fast Spiral |
| Series/List | CoroTap 300 |
| Neck Length (Decimal Inch) | 2.5940 |
| Tapping Depth (Decimal Inch) | 3.5827 |
| Tapping Depth (mm) | 91.00 |
| Shank Diameter (Decimal Inch) | 0.6969 |
| Shank Diameter (mm) | 17.70 |
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