OSG - 1/2-20 UNF 3B 4 Flute Bright Finish Cobalt Straight Flute Machine Tap - Plug, Right Hand Thread, 3-3/8" OAL, 1-21/32" Thread Length, H3 Limit, Oversize
Item #: 64181522
Brand: OSG
Model #: 1739300
Exact Tooling IR#: 04
Features and Benefits
Plug chamfers are the most commonly used chamfer and designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
| Product Specifications | |
|---|---|
| Tap Type | Machine Tap |
| Thread Size (Inch) | 1/2-20 |
| Class of Fit | 3B |
| Thread Limit | H3 |
| Number of Flutes | 4 |
| Chamfer | Plug |
| Material | Cobalt |
| Finish/Coating | Bright |
| Thread Direction | Right Hand |
| Through Coolant | NonThrough Coolant |
| Thread Standard | UNF |
| Overall Length (Inch) | 3-3/8 |
| Oversize | No |
| Series/List | 305 |
| Thread Length (Inch) | 1-21/32 |
| Shank Diameter (Decimal Inch) | 0.3670 |
| Square Size (Decimal Inch) | 0.2750 |
| Material Application | Alloy Steel; Carbon Steel; Cast Iron; Die Steel; Hardened Steel; Stainless Steel |
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