They also come as micro end mills. They are available as uncoated carbide or with PVD coatings of AlTiN, TiN, TiCN, and AlTiN. They range in sizes from .005" to 1" in diameter. Metric sizes are also available. 2 Flute Ball Nose End Mill. Filter: End Type = Single End Ball. 2 Flute End Mill For Aluminum. Filter: Material Family = Aluminum