Helical Internal UN Threadmills - Mastercut Tool Corp

SKU 290-042 Category Helical Internal UN Threadmills Tags aluminum, cast iron, hardened, non-ferrous, stainless, steel, titanium

Helical internal UN threadmills designed for precision machining of Unified National internal threads
Ideal for producing accurate thread profiles with excellent surface finish in blind or through holes
Helical threadmilling reduces cutting forces and allows flexible pitch and size control with one tool
Manufactured from A-Gr-SiV Premium Carbide Blend (Active Grain Sized Volume) for strength and extended tool life
Proudly made in the USA from solid carbide for consistent, high-performance threading results