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)