TOOL

摘要

In a tool comprising a supporting part (1) and a disk-shaped working pa rt (2) for machining operation, the supporting part (1) comprises a supporting face (5) for the working part (2) and a permanent magnet (14) within the supporting face (5). The working part (2) comprises a coupling member (19) of ferromagnetic material which is movable into magnetically clinging connection with the permanent magnet (14) upon application of a counter-part supporting face (15) to the supporting face (5).