| 摘要 |
Provided at the end part of the shaft is a seat, which permits the positioning of and a stable support for a cutter in at least two of the principal directions utilized in the machining operation, so that the stresses imposed on the cutter during such machining are transferred in an effective fashion to the shaft. A novel feature is the arrangement on the shaft of at least one tightenable fastening device which, after tightening, engages with the cutter and forces it against at least one surface on the seat, and the arrangement on the cutter of stop parts with which the fastening devices is intended to engage only once the cutter, after displacement relative to the seat on the shaft and whilst still remaining in contact with it, has reached its operating position. <IMAGE> |
