Review on SpeTool 5Pcs/Set Flat Nose Double Flute Carbide End Mill 1/32" Cutting Dia Router Bits Cutter CNC Machine Tools For Carbon Steel Soft Alloy Steel Die Steel Tool Steel Cast Iron Wood by Chris Nonamaker

I milled the 2 aluminum pieces with one of these end Mills and it's still sharp. The black piece was from another time. These end Mills are sharp. They get into aluminum with minimal radial force. Nice chips. Smooth to the touch surface finish on the parts. I can't comment on life span at this point but based on the two pieces I made the value is definitely good.