Our CNC End Mill Set includes a versatile set of high quality, long lasting, solid carbide end mills for the most common CNC projects that require cutting aluminum, or a variety of other materials. All of our End Mills feature a 45° helix for superior chip evacuation, along with the latest generation Zirconium Nitride (ZrN) coating for exceptional tool-life and performance. ZrN was developed specifically for machining aluminum, yet it is excellent for machining all non-ferrous materials and is highly recommended for machining fiberglass, nylon, and most polymer materials.