OSG - 1/4-28 UNF, 3 Flute, 50° Helix, Bottoming Chamfer, Bright Finish, High Speed Steel Spiral Flute STI Tap - Right Hand Flute, 2-1/2" OAL, 0.318" Shank Diam, 1" Thread Length
Item #: 65053084
Brand: OSG
Model #: 8011800
Exact Tooling IR#: 04
Features and Benefits
Bottoming chamfers are used for threading blind holes. 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.
| 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 |
| Helix Angle | 50 |
| Thread Standard | UNF |
| Material | High Speed Steel |
| Flute Direction | Right Hand |
| Thread Length (Inch) | 1 |
| Shank Diameter (Decimal Inch) | 0.3180 |
| Material Application | Aluminum; Carbon Steel; Cast Iron; Hardened Steel |