| 摘要 |
A rotary pipe cutting apparatus for removing sections of broken pipe from the bore of an outer pipe. The invention includes a cylindrical body with a longitudinal slot that is angularly offset from the rotational axis of the body and which is tapered in depth and width from top to bottom. A blade is included on the body adjacent the slot and the lower end of the body, with the blade having cutting edges which extend both downward and radially outward from the body. A guide member which centers the apparatus is included on the lower end of the body which includes resilient rounded projections. A stopping member is included on the upper end of the body. A shank on the upper end of the body allows attachment of the apparatus to a rotary power tool.
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