| 摘要 |
A description is given of equipment for the production of screw-threaded drilled holes (tapped holes) of variable diameters in solid materials in a single-pass operation with the use of an integrated cutting tool and with the use of a commercially-available hand-drilling machine having an electronically-controlled motor drive, or any other type of drive, where the equipment includes a tool spindle which may be attached to the drive shaft of a hand-drilling machine or the like, and which is radially displaceable in relation to its axis and accommodated in a cylindrical housing for the spindle, where the position of said spindle housing may be adjusted axially in a specified manner by means of a screw device in a holder which may be mounted on the tool and has arrangements, on the one hand, for limitation of the axial travel of the tool and, on the other hand, for adjustment of the desire diameter of the tapped hole which is to be produced. |
