High Performance Spiral Flute Tap for Aluminum
Non-Ferrous
Non-Ferrous
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| Thread Size - Inch | 1/4 |
| Thread Type | UNC STI |
| Threads Per Inch | 20 |
| Thread Limit | H3 |
| Chamfer Type | Modified Bottom (2.5P) |
| Major Diameter - Inch | 0.25 |
| Thread Length - Inch (Lc) | 0.5 |
| Tap Drill Size Min - Inch | 0.2608 |
| Tap Drill Size Max - Inch | 0.2704 |
| Neck Length - Inch (L1) | 1.125 |
| Overall Length - Inch (L) | 2.72 |
| Square Length - Inch (Ik) | 0.375 |
| Shank Diameter - Inch (d) | 0.318 |
| Square Width - Inch (k) | 0.238 |
| STI Thread | Yes |
| Substrate | HSSE |
| Surface Treatment | V |
| Coolant Thru | No |
| Number of Flutes | 2 |
| Cutting Direction | RH |
| Helix Angle - Degree | 50 |
| Helix Direction | RH |
| Interrupted Thread | No |
| View Catalog Page | Here |
| Notes | Other coatings available upon request. |
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