Method for manufacturing brushes, whereby bundles of fibers (12) are provided in a brush body (13), whereby this method also comprises a step whereby the far ends (2) of the fibers (3) are subjected to a processing by bringing them into contact with a processing equipment (5), characterized in that, during the aforesaid step, the fibers (3) and the processing equipment (5) are mutually put into contact whereas the fibers (3) are being held loosely together.