| 主权项 |
1. A method for stabilization of a bore, the method consisting of securing a bore adaptor within a receiving aperture of a drill, where the adapter consists of (a) a shaft having a first and second end, where the first end has a non-cylindrical cross-section at a lateral engagement plane, which plane is capable of engaging with a drive shaft of the drill, and (b) a coaxially aligned an arbor lockingly secured to the shaft at a location near the second end, aligning the arbor in an original hole, and expanding the original hole by eliminating mass concentrically around the original hole with an elimination device. |
