High Speed Tapping of Aluminum and Aluminum Alloy
Non-Ferrous
Non-Ferrous
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| Thread Size - Inch | 1/4 |
| Thread Type | UNC |
| Threads Per Inch | 20 |
| Class of Fit | 2B |
| Chamfer Type | Plug (6P) |
| Major Diameter - Inch | 0.25 |
| Thread Length - Inch (Lc) | 0.594 |
| Tap Drill Size Min - Inch | 0.196 |
| Tap Drill Size Max - Inch | 0.207 |
| Neck Length - Inch (L1) | 0.996 |
| Overall Length - Inch (L) | 2.4567 |
| Square Length - Inch (Ik) | 0.3125 |
| Shank Diameter - Inch (d) | 0.255 |
| Square Width - Inch (k) | 0.191 |
| STI Thread | No |
| Substrate | HSSE |
| Surface Treatment | V |
| Coolant Thru | No |
| Number of Flutes | 2 |
| Cutting Direction | RH |
| Helix Angle - Degree | 20 |
| Helix Direction | LH |
| Interrupted Thread | No |
| View Catalog Page | Here |
| STP Drawing | Download |
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