YG-1 TE160 Helical Flute YG-1 Thread Mill, #4-40 Thread, 2 in OAL, 3 Flutes, 1/8 in Dia Shank

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

Yg-1 Cutting Tools Te160 4-40 Thread Size | Unified | 3 Flute | Solid Carbide | Tialn Coated | Helical Flute Thread Mill