| Manufacturer Part Number | L421E540 |
| Thread Size (Inch) | 7/16" |
| Threads per Inch (TPI) | 20 |
| Thread Series | UN |
| Thread Size (Decimal Inch) | 0.335" |
| Thread Size (mm) | 8.51mm |
| Shank Diameter (Inch) | 3/8" |
| Shank Diameter (Decimal Inch) | 0.375" |
| Shank Diameter (mm) | 9.53mm |
| Thread Length (Decimal Inch) | 0.875" |
| Thread Length (mm) | 22.23mm |
| Overall Length (Inch) | 3-1/2" |
| Overall Length (Decimal Inch) | 3.500" |
| Overall Length (mm) | 88.90mm |
| Shank Type | Plain |
| Helix Angle (Degree) | 15 Degree |
| Number of Flutes | 4 |
| Coating | TiAIN |
| Material | Carbide |
| Application | P,K,N |
| Series | L421E |
| Cutting Direction | Right Hand |
| Product Type | Helical Flute Thread Mill |
714.897.1700
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