| Manufacturer Part Number | L421K780 |
| Thread Size (Inch) | 1" & 2" |
| Threads per Inch (TPI) | 11.5 |
| Thread Series | NPS |
| Thread Size (Decimal Inch) | 0.620" |
| Thread Size (mm) | 15.75mm |
| Shank Diameter (Inch) | 5/8" |
| Shank Diameter (Decimal Inch) | 0.625" |
| Shank Diameter (mm) | 15.88mm |
| Thread Length (Decimal Inch) | 1.304" |
| Thread Length (mm) | 33.12mm |
| Overall Length (Inch) | 4" |
| Overall Length (Decimal Inch) | 4.000" |
| Overall Length (mm) | 101.60mm |
| Shank Type | Plain |
| Helix Angle (Degree) | 15 Degree |
| Number of Flutes | 4 |
| Coating | TiAIN |
| Material | Carbide |
| Application | P,K,N |
| Series | L421K |
| Cutting Direction | Right Hand |
| Product Type | Helical Flute Thread Mill |