Improvements in or relating to the removal of articles embedded in surrounding material

摘要

IMPROVEMENTS IN OR RELATING TO THE REMOVAL OF ARTICLES EMBEDDED IN SURROUNDING MATERIAL A drill guide (150) comprises a mounting arrangement (152) for mounting the drill guide on an article (156). The drill guide further includes first and second guide arrangements (176, 178) and a holding arrangement (158) for holding the first and second drill guides. The holding arrangement IS adjustable between a release position in which the positions of the first and second guide arrangements (176, 178) are adjustable relative to the holding arrangement and a holding position in which the first and second guide arrangements are held by the holding arrangement in a fixed position.