| 摘要 |
<p>The cylindrical calibration head (1) for the drilling of a shaft (4), comprising three flûtes (20, 21, 22) arranged evenly around the circumference so that they are spaced one from the next by an angle of 120° with respect to a rotation with respect to the axis of the calibration head, the flûtes allowing for the removal of chips and the passage of lubricant during drilling, each of the flûtes comprising a machining insert of which the position in the flûte can be adjusted using an adjusting cartridge.</p> |
