OSG - 1/4-28 UNF, H2, 3 Flute, Bottoming Chamfer, Bright Finish, High Speed Steel Hand STI Tap - 2-1/2" OAL, 1" Thread Length, 0.191" Square Size, Series 126
Item #: 65033086
Brand: OSG
Model #: 1806700
Exact Tooling IR#: 04
Features and Benefits
Bottoming chamfers are used for threading blind holes to the bottom. They have 1 to 2 threads.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
High Speed Steel (HSS) provides good wear-resistance and can be used in general purpose applications for both ferrous and non-ferrous materials.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/4-28 |
| Thread Limit | H2 |
| Number of Flutes | 3 |
| Chamfer | Bottoming |
| Finish/Coating | Bright |
| Overall Length (Inch) | 2-1/2 |
| Thread Standard | UNF |
| Thread Length (Inch) | 1 |
| Shank Diameter (Decimal Inch) | 0.2550 |
| Square Size (Decimal Inch) | 0.1910 |
| Material | High Speed Steel |
| Material Application | Aluminum; Carbon Steel; Cast Iron; Hardened Steel |
| Series/List | 126 |
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