Solid carbide bull end mill long neck, high performance 2 flutes, 3 mm diameter, 0.3 mm corner radius, 3.6 mm length of cut, 16 mm neck, 55 mm overall length, shank diameter 6 mm and 30 degrees helix. The 2 flutes has high hardness, good wear resistance and durability. Designed for High Speed Cutting (HSC), High Performance Cutting (HPC), High Hard Cutting (HHC) and Air Cooling. Coating Material Basis: TiAlN.