10pcs 18 shank microcutting diameter end mills set em10w01 1 x tapered ball nose end mill radius 025mm cutting length 15mm 1 x tapered ball nose end mill radius 05mmcutting length 15mm 1 x tapered ball nose end mill radius 075mmcutting length 15mm 1 x tapered ball nose end mill radius 10mmcutting length 15mm.