Apparatus for attaching an object (30, 32) to a support, said apparatus comprising: a main body, upper and lower dies (12, 14) adapted to deform said object, at least one of said dies being movable relative to said main body to approach the other die,, and a measuring means (16, 20; 18, 22) adapted to measure the position of said movable die relative to said main body and/or relative to said other die, characterized by a force limiting means adapted to take up a driving force exerted by a driving source and to transfer said driving force by rotation into an attaching force for moving said movable die, said force limiting means comprising a compensator spring adapted to limit said attaching force to a predetermined value, and a monitoring means adapted to receive an output signal of said measuring means (16, 20; 18, 22) and to perform at least one of the following: a) permanently monitoring the position of said movable die (12, 14) relative to said main body and/or to said other die, during a process of attaching said object (30, 32) to said support, b) storing said monitored position in at least one predetermined moment during the attaching process, c) determining in at least one predetermined moment during the attaching process whether the distance ( Δ G1 + Δ G2) between said upper and lower dies (12, 14) is below a lower limit, and d) determining in at least one predetermined moment during the attaching process whether the distance ( Δ G1 + Δ G2) between said upper and lower dies (12, 14) is beyond an upper limit. a main body, upper and lower dies (12, 14) adapted to deform said object, at least one of said dies being movable relative to said main body to approach the other die,, and a measuring means (16, 20; 18, 22) adapted to measure the position of said movable die relative to said main body and/or relative to said other die, characterized by a force limiting means adapted to take up a driving force exerted by a driving source and to transfer said driving force by rotation into an attaching force for moving said movable die, said force limiting means comprising a compensator spring adapted to limit said attaching force to a predetermined value, and a monitoring means adapted to receive an output signal of said measuring means (16, 20; 18, 22) and to perform at least one of the following: a) permanently monitoring the position of said movable die (12, 14) relative to said main body and/or to said other die, during a process of attaching said object (30, 32) to said support, b) storing said monitored position in at least one predetermined moment during the attaching process, c) determining in at least one predetermined moment during the attaching process whether the distance ( Δ G1 + Δ G2) between said upper and lower dies (12, 14) is below a lower limit, and d) determining in at least one predetermined moment during the attaching process whether the distance ( Δ G1 + Δ G2) between said upper and lower dies (12, 14) is beyond an upper limit. a) permanently monitoring the position of said movable die (12, 14) relative to said main body and/or to said other die, during a process of attaching said object (30, 32) to said support, b) storing said monitored position in at least one predetermined moment during the attaching process, c) determining in at least one predetermined moment during the attaching process whether the distance ( Δ G1 + Δ G2) between said upper and lower dies (12, 14) is below a lower limit, and d) determining in at least one predetermined moment during the attaching process whether the distance ( Δ G1 + Δ G2) between said upper and lower dies (12, 14) is beyond an upper limit.