UNJ 5/16"x18-2xDo - 18TPI Pitch UNJ Helical Flute Internal Carbide Thread Mill with Radial Coolant - (Helicool R HCR Series - Vardex)
106-00051
Thread Milling TM Solid Carbide HeliCool-Radial Cooling IN 18TPI ISO Shank Diameter 8 (mm) Cutting Diameter 6.4 (mm) Tool Overhang 16.2 (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
- Radial Coolant For Through Holes

| Thread Standard | UNJ |
| Pitch | 18TPI |
| EXT/INT | IN |
| Coolant | Yes |
| L | 16.2mm |
| L1 | 16.2mm |
| Le | 16.2mm |
| Cutting Dia | 6.4mm |
| Z | 3 |
| Zt | 11 |
| Grade | VTH |
| Coating | TiCN |
| Description | HCR08064L15-I18UNJTMVTH |
| Shank Dia | 8mm |
106-00051 UNJ 5/16"X18-2XDO - 18TPI PITCH UNJ HELICAL FLUTE INTERNAL CARBIDE THREAD MILL WITH RADIAL COOLANT - (HELICOOL R HCR SERIES - VARDEX)