Guhring - 1/4-20 UNC 3 Flute 2B Modified Bottoming Spiral Flute Tap - Cobalt, TiN Finish, 2-1/2" OAL, Right Hand Flute, Right Hand Thread, Series 3922
Item #: 63267587
Brand: Guhring
Model #: 9039220063500
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.
Titanium Nitride (TiN) is a multi-purpose coating which increases chip flow in softer materials. The heat and hardness resistance allows the tool to run at higher speeds than uncoated tools.
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) | 1/4-20 |
| Chamfer | Modified Bottoming |
| Class of Fit | 2B |
| Number of Flutes | 3 |
| Material | Cobalt |
| Finish/Coating | TiN |
| Thread Direction | Right Hand |
| Flute Direction | Right Hand |
| Through Coolant | NonThrough Coolant |
| Overall Length (Decimal Inch) | 2.5000 |
| Overall Length (Inch) | 2-1/2 |
| Helix Angle | 40 |
| Thread Standard | UNC |
| Oversize | No |
| Thread Length (Decimal Inch) | 0.5120 |
| Flute Type | Fast Spiral |
| Series/List | 3922 |
| Shank Diameter (Decimal Inch) | 0.2550 |
| Material Application | Alloyed Steel; Unalloyed Steel |
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