UN 1/4"x28-2xDo - 28TPI Pitch UN Helical Flute Internal Carbide Thread Mill with Radial Coolant - (Helicool R HCR Series - Vardex)
106-00038
Thread Milling TM Solid Carbide HeliCool-Radial Cooling IN 28TPI ISO Shank Diameter 6 (mm) Cutting Diameter 5.15 (mm) Tool Overhang 13.1 (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 | 28TPI |
| EXT/INT | IN |
| Coolant | Yes |
| L | 13.1mm |
| L1 | 13.1mm |
| Le | 13.1mm |
| Cutting Dia | 5.15mm |
| Z | 3 |
| Zt | 14 |
| Grade | VTH |
| Coating | TiCN |
| Description | HCR06052L13-I28UNFTMVTH |
| Shank Dia | 6mm |
106-00038 UN 1/4"X28-2XDO - 28TPI PITCH UN HELICAL FLUTE INTERNAL CARBIDE THREAD MILL WITH RADIAL COOLANT - (HELICOOL R HCR SERIES - VARDEX)