Described is an industrial brush (1) comprising a brush body (2) obtained by the solidification of a metal in which the metal wires are locked in a rigid fashion for a first portion (3) thereby having a rigid body.The second portion of metal wires (4) is, on the other hand, free to perform brushing when the brush body (2) is rotated about a relative axis (5).The brush body (2) incorporates the metal wires with a structural coupling (with zero tolerance) which keeps unaltered the relative characteristics over time, with heat variations and at high speeds of rotation.It is also possible to construct the elements of traditional brushes with the same metal and a process is described for constructing new geometrical shapes for producing brushes with synthetic and natural wires with the traditional systems.Also described is a process for making a brush (1) comprising the steps of feeding in a mold (8) a metal in the molten state (melting temperature less than 2000° C.), in such a way that the first portion of the metal wires (3) is immersed in the metal which, when solidifying, forms a brush body with a rigid structure with a high mechanical strength such as to render perfectly stable the operation of the brush at high speeds and at high temperatures.During solidification of the molten metal there is also a heat treatment on the metal wires which improves their mechanical characteristics.Flanges, outer cups and inner cups with innovative embodiments can also be made with the same molding process, improving the characteristics of the traditional brushes.