Abstract: The invention is based on a system with a tool-holding fixture, which fixture has a slaving device (12) by way of which an inserted tool (14) can be connected operatively to a drive shaft (16), and with an inserted tool (14) which can be connected operatively to the slaving device (12) via at least one detent element (20) that is supported movably counter to a spring element (18), which detent element snaps into place in an operating position of the inserted tool (14) and fixes the inserted tool (14) by positive engagement. It is proposed that the tool-holding fixture and the inserted tool (14) have at least two corresponding shaped elements (22, 24), adapted to one another, to facilitate installation of the inserted tool (14).