| 摘要 |
A stabilizing device of durable, compressible, material, in which the rotation of the device is coupled to the rotation of the stabilized workpiece in a chuck by the pressing of the device against the base of a bore in the workpiece. The resulting compression of the material expands its effective diameter to produce a stabilizing effect. As the device wears through use, the effective diameter may be increased by means of a compression screw.
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