UNJ 5/16"x18-2xDo - 18 TPI Pitch Helical Flute Internal Carbide Thread Mill with Axial Coolant - (Helicool Series - Vardex)
104-00347
Thread Milling TM Solid Carbide HeliCool IN 18 TPI UNJ Shank Diameter 8 (mm) Cutting Diameter 6.4 (mm) Tool Overhang 15.52 (mm) VTH Grade
- For Internal Machining
- For UNJ 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 | UNJ |
| Pitch | 18TPI |
| EXT/INT | IN |
| Coolant | Yes |
| L | 15.52mm |
| L1 | 15.52mm |
| Le | 15.52mm |
| Cut Dia | 6.4mm |
| Z | 3 |
| Zt | 10 |
| Grade | VTH |
| Coating | TiCN |
| Description | HC08064L15-I18UNJTMVTH |
| Shank Dia | 8mm |
104-00347 UNJ 5/16"X18-2XDO - 18 TPI PITCH HELICAL FLUTE INTERNAL CARBIDE THREAD MILL WITH AXIAL COOLANT - (HELICOOL SERIES - VARDEX)