The boring tool is a common hand tool used by the fitter to cut the surface of the workpiece. Depending on the material of the workpiece and the shape of the machined part, the fitter is equipped with boring tools of different sizes, shapes and teeth. In order to protect the tooth surface, the files should not be stacked one on top of the other, but they are placed separately and take up space. The best way is to place them on the shelf. A movable boring tool holder (see illustration) is described, which consists of a support plate 3, a bushing 5 and a round steel 6. Support plate 3 is about 10mm
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