pMorse Single End Mill, Center Cutting Miniature Regular Length, Series 5918T, 0041 in Cutter Dia, 112 in Overall Length, 0123 in Maximum Depth of Cut, 4 Flutes, Helix Flute, 18 in Shank Dia, 30 deg Helix Angle, Micrograin Solid Carbide, AlTiN Coatedp