The invention is directed to a dent removing device (13) for removing of dents (21) in ferromagnetic sheet metals (20) by way of inductive heating, said dent removing device (13) comprising a working head (1) with a housing (2) with at least one working face (8) foreseen to be brought in close contact with a dent (21) in a sheet metal (20) and at least one magnetic field generator (19) for generating a magnetic field. The at least one working face (8) comprises a recess (9) for visual control of the dent removing.