| 摘要 |
A rotary abrasion device that includes an axial shaft adapted to be attached to a fixed or keyed power tool chuck. The device has standardized shaft element, preferably a hex shank, located along a central longitudinal axis. This shank is common to the three primary embodiments. One embodiment includes an inner cylinder with apertures that allow a peripheral arrangement of brushes to protrude through the inner cylinder. Metallic pipes, tubing, and the like are able to be placed into the inner cylinder. An adjustment element on the device limits brush protrusion into the inner cylinder and thus the brush contact with any metallic pipe inserted within the inner cylinder. Rotation of the device is accomplished via the given power tool so as to abrade the given metallic pipe. One alternative embodiment includes an additional central reamer element placed within the inner cylinder and secured within the axial shaft of the device. Another alternative embodiment utilizes a singular brush without the inner cylinder or adjustment element, but with the axial shaft common to the other embodiments.
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