The EY-YM-2 mill is a two-discortion desktop. It is designed to grind, grind and grind the gold-symmetric specimens. It is an essential device for the user to make the gold-symmetric samples. It has a cooling device that can cool the specimens while they are pre-sorted, so as to prevent the destruction of the gold-symphonic tissue by overheating the sample. It is a convenient, secure and reliable machine. It is an ideal device for factories, scientific institutions and university and university laboratories.