| 摘要 |
A hole trimmer (10) capable of removing peripheral material projecting inside a perimeter of a first aperture (1), said hole trimmer (10) including: a severing mechanism (11) with first (14) and second (15) substantially opposed cutting surfaces, configured such that said first cutting surface (14) is capable of passing through said first aperture perimeter (1), whilst said second cutting surface (15) is incapable of passing through said first aperture (1) perimeter; an actuation mechanism (12) capably of reversibly moving said first (14) and second cutting surfaces (15) towards and away from each other about a first longitudinal axis, wherein, in use, second cutting surface (15) is inserted through said first aperture (1) passed said material until said first cutting surface (14) contacts said aperture (1) perimeter, whereupon, said actuation means (12) is activated to move said second cutting surface (15) along said first longitudinal axis into cutting contact with said first cutting surface (14), severing any material interposed therebetween.
|
