YG1 TE820 0.745 in Milling Dia, 4.5 in OAL, 5 Flutes, Carbide, TiAlN

Thread Mills Solid Carbide, 60 Degree, Helical Flute, Tialn Coated For Unified Internal Threads (Ansi B 1.1)

Yg-1 Cutting Tools Te820 1-1/8-7 & 1-1/4 Thread Size | Unified | 5 Flute | Solid Carbide | Tialn Coated | Helical Flute Thread Mill