| 摘要 |
An adjustable holding system comprises a base adapted for use on a work surface, the base having at least one exit hole adapted to serve as a chip breaker by allowing waste material generated during drilling to exit a drilling area and a guide assembly, adapted and arranged to be movable with respect to a portion of the base, having a guide channel disposed to receive and guide a shank of a drill bit, the guide assembly having at least one exit hole adapted to allow waste material generated during drilling to exit a drilling area. |
