(under subclass 72) Device including a tool-encircling structure advanced of any tool-driving structure along the tool-axis, which encircling structure is adapted to slidingly engage the tool and thereby restrict the tool from moving or flexing laterally, which device includes provision to permit the work-contacting structure to be repositioned relative to the tool-encircling structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72, for similar structure lacking provision for adjustment.
97, for similar structure including a tool-opposing, work-engaging surface,
241, for a tool-guiding jig (or "drill-bushing") lacking a work-contacting surface.