UNF 5/8"x18- 2xDo - 18 TPI Pitch Helical Flute Internal Carbide Thread Mill with Axial Coolant - (Helicool Series - Vardex)
104-00078
Thread Milling TM Solid Carbide HeliCool IN 18 TPI UN Shank Diameter 16 (mm) Cutting Diameter 14.1 (mm) Tool Overhang 31.75 (mm) VTH Grade
- For Internal Machining
- For UN threads
- Ideal for Steel, Stainless Steel, HRSA's, Cast Iron & Non-Ferrous
- Made from Micro grain Solid Carbide
- TiCN coating for longer tool life
- Axial coolant for blind holes

| Thread Standard | UN |
| Pitch | 18TPI |
| EXT/INT | IN |
| Coolant | Yes |
| L | 31.75mm |
| L1 | 31.75mm |
| Le | 31.75mm |
| Cutting Dia | 14.1mm |
| Z | 4 |
| Zt | 22 |
| Grade | VTH |
| Coating | TiCN |
| Description | HC16141L31-I18UNFTMVTH |
| Shank Dia | 16mm |
104-00078 UNF 5/8"X18- 2XDO - 18 TPI PITCH HELICAL FLUTE INTERNAL CARBIDE THREAD MILL WITH AXIAL COOLANT - (HELICOOL SERIES - VARDEX)