These beats work great. I've used it on steel and aluminum with.
I've used it on steel and aluminum with great success. I still need to optimize my mini cutter's cooling system to make them last longer, but I'm very happy with them for dry cutting.
Pros
Titanium Aluminum Nitride (TiAlN) coating lubricates the end mill and provides high temperature stability and abrasion resistance at high cutting speeds and offers better heat resistance than uncoated, TiN-coated and TiCN-coated.