UN 1"x8-2xDo - 8TPI Pitch UN Helical Flute Internal Carbide Thread Mill with Radial Coolant - (Helicool R HCR Series - Vardex)
106-00049
Thread Milling TM Solid Carbide HeliCool-Radial Cooling IN 8TPI ISO Shank Diameter 20 (mm) Cutting Diameter 19.9 (mm) Tool Overhang 52.4 (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
- Radial Coolant For Through Holes

| Thread Standard | UN |
| Pitch | 8TPI |
| EXT/INT | IN |
| Coolant | Yes |
| L | 52.4mm |
| L1 | 52.4mm |
| Le | 52.4mm |
| Cutting Dia | 19.9mm |
| Z | 4 |
| Zt | 16 |
| Grade | VTH |
| Coating | TiCN |
| Description | HCR20199L52-I8UNCTMVTH |
| Shank Dia | 20mm |
106-00049 UN 1"X8-2XDO - 8TPI PITCH UN HELICAL FLUTE INTERNAL CARBIDE THREAD MILL WITH RADIAL COOLANT - (HELICOOL R HCR SERIES - VARDEX)