<p>The invention relates to a key with a removable head. According to the invention, projecting elements (11) are provided at the end of the shaft (10 ) and the head (1) is connected to said projecting elements by means of a groo ve (5). The aforementioned head (1) comprises a body (2) with a hole (4) dispos ed in the centre thereof and said hole is provided with a plug (6) which is use d to fix the shaft (10) to the head (1) and vice versa.</p>