| 摘要 |
This is a mechanization system which allows the use of extra long tools. It consists of three parts: A) an upper part 1 which is fixed, surrounding the tool holder and rotating independently of the tool or fixed as desired; B) an intermediate arm 2 which provides rigidity to the tool; C) a lower part 3 which secures the tool without immobilizing it and prevents vibration or displacement of its shaft during working. <IMAGE>
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