| 摘要 |
Disclosed is a tool (6) for retaining a workpiece (4) during processing of that workpiece (4). The tool (6) comprises: a surface (8); and a tooling ball (16). At least part of the tooling ball (16) is located within a cavity (18) recessed in the surface (8). Preferably, the tooling ball (16) is wholly located within the cavity (18) recessed in the surface (8). The tooling ball (16) is a precision ground reference structure that may be used to define a datum with respect to which the workpiece (4) may be located. The tooling ball (16) may be used as reference points during critical inspection, layout, and machining operations and the like performed on the workpiece (4). |
