| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultramodern tool holder extremely high in commercial value. SOLUTION: This tool holder comprises a plurality of claw members 5 holding and releasing a pull-stud 3 of the tool holder fitted to a tapered holding hole 2 at the tip part of a spindle 1 of a machine tool and disposed annularly in a sleeve 4 and a draw bar 6 holding the pull-stud 3 by pulling the claw members 5 and releasing the holding of the pull-stud 3 by pushing the claw members 5.
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