Scientific Cutting Tools TM080-40A Straight Flute Thread Mill: #4 to 40, Internal, 3 Flutes, 1/4" Shank Dia, Solid Carbide
Straight Flute Thread Mill: #4 to 40, Internal, 3 Flutes, 1/4" Shank Dia, Solid Carbide 40 TPI, 0.08" Cut Dia, 0.21" LOC, 2.5" OAL, AlTiN+ Coated
$162.15