FIELD: mechanical engineering. SUBSTANCE: drill device has a drill on whose trunk a bead is made. In order to avoid the hole danage in the zone of onset and the drill device as well, the bead is equipped with a resilient ring-shaped damping member which rests on the washer and is connected with the suction hopper. The washer has the convex surface of slipping which adjoins the concave face surface of the bead made on the drill column. EFFECT: facilitated manufacture. 5 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRILL FOR MAKING HOLES WITH RELIEVING IN THE MASONRY | 1992 |
|
RU2041819C1 |
| BORING DEVICE FOR MAKING BACKED OFF HOLES | 0 |
|
SU1724005A3 |
| FASTENING PART WITH SPACER MEMBER | 1995 |
|
RU2106545C1 |
| APPARATUS FOR DRILLING BEAD-CUT HOLES IN OVERLAYING TILES | 0 |
|
SU1836214A3 |
| DEVICE FOR DRILLING MOUNTING HOLES | 1991 |
|
RU2033328C1 |
| MEMBER FOR CONTROL OF PRELIMINARILY TENSION OF THREADED ANCHOR | 1995 |
|
RU2112893C1 |
| NAIL | 1994 |
|
RU2082906C1 |
| FASTENER AND FASTENING UNIT | 1991 |
|
RU2018728C1 |
| FASTENING MEMBER | 1993 |
|
RU2069721C1 |
| PLASTIC DOWEL | 0 |
|
SU1521287A3 |
