This machine is a newly developed product based on traditional knee-type milling machine and has more advanced features than the general one. This machine can mill any angle surface through front half-sphere by swiveling milling head. It features enlarged machining capacity, widened spindle speed range. Feed of three directions adopt three separate infinitely speed changing systems which do not interference each other and posses working reliability, easy maintenance, long life, easy operation, automatic lubrication system, sufficient rigidity and so on. This machine can mill plane, groove, slant groove, even can mill plane and groove in cavity of some workpieces. Being installed with various kinds of borers, it can bore different holes vertically, horizontally, left-horizontally or right-horizontally. Equipped with special-purpose tooling, it can bore inclined hole at special angle. It is suitable for metalworking operation of all kinds of factories, especially for dies and moulds.