... Milling Cutter, Made of High-speed Steel 2.Suitable for use in a wide range of ferrous and non-ferrous materials Dovetail Milling Cutter, Made of High-speed SteelDovetail milling ... for use in a wide range of ferrous and non-ferrous materialsAvailable in 45 or 60°Made of high-speed steel, tunsten carbide Dovetail Milling Cutters, Made of High-speed Steel