| 摘要 |
A rotationally symmetrical tool assembly includes a first component constituted by a tool holder; a second component constituted by a tool head and being removably attached to the first component such that engagement faces of the first and second components are in a contacting relationship with one another and are oriented perpendicularly to the rotary axis of the tool assembly. A fitting bore is provided in one of the components and a guide bore is provided in the other of the components. A securing pin projects from the fitting bore and extends into the guide bore for determining and maintaining a desired angular position of the second component relative to the first component. There are provided at least one additional fitting bore in one component and at least one additional guide bore in the other component, whereby the securing pin projecting from a selected one of the fitting bores is insertable to a selected one of the guide bores to provide for a selectable angular setting of the second component with respect to the first component. A plug is inserted in each guide bore other than the guide bore designated to receive the securing pin upon attaching the second component to the first component.
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