| 摘要 |
A security mechanism adapted to a tool holder comprising a first member and a second member pivotally connected to the first, each of the members having a recessed portion defined on a mating surface to receive a portion of a tool shaft whereby a handle portion and/or other part of the secured tool is positioned outside of the security mechanism and the holder and is accessible to a user. The shaft security mechanism includes, preferably, a variable position locking means for securi ng the first and second members in the closed position in one of a number of locking positions. Preferably, a compressible insert slidably mountable onto the tool shaft portion may be inserted and registered into a cavity further defined by the recessed portio ns of the first and second members when the security mechanism is in an open position.</SDOA B>
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