| 摘要 |
<p>The device comprises a drum-magazine (9) provided with radial housings (10) wherein drills (13) are stored. These drills are grasped by a holder (22) of a pin (4) mounted on a transverse slide (5). Upon extraction of a drill, the latter is pushed by a resilient thrust (18) against a stop (23) inside the holder. The displacement of the slide (5) is limited by an adjustable stop (24). After sharpening, the drill is brought back into the magazine. The device allows the length adjustement of the drills and prevents breakage thereof. </p> |
