3/16 to 3/4″, 2, 4 Flute Square End Mill Set – TiN Coating, High Speed Steel, Single End, 3/8, 1/2, 5/8, 3/4″ Shank Diam, Centercutting | 92000439

92000439 92000439 20PC 3/16-3/4″ W/CASE High speed steel (HSS) provides good wear resistance It is commonly used for general purpose applications on both ferrous and nonferrous materials Square ends are used for general milling applications including slotting, profiling and plunge cutting Titanium Nitride (TiN) is a multi-purpose coating which increases chip flow in softer materials The heat and hardness resistance allows the tool to run at higher speeds than uncoated tools.