| 摘要 |
A key with a detachable head consisting of incorporating projections ( 11 ) on the end of the shaft ( 10 ), to which projections a head ( 1 ) is coupled by means of a slot ( 5 ), which head is formed by a body ( 2 ) provided in its central area with a perforation ( 4 ) provided with a stop ( 6 ) which retains the shaft ( 10 ) to the head ( 1 ), and vice versa.
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