To improve adhesion of a membrane containing oxygen by solving problems of adhesion, tenacity and the like of an oxide coat in a physical evaporation method.

In a tool with hard metal such as high speed steel, hard metal or cermet as a base body covered with a hard covering layer, the hard covering layer is formed by laminating twenty or more layers each of which comprises two or three or more kinds of carbide, nitride, oxide of 4a, 5a, 6a groups and A1 in a periodic table and mixtures or solid solutions thereof, and the respective layers are formed by alternately laminating layers containing oxide and layers containing carbide and nitride.