FIELD: metal working, cutting tools.
SUBSTANCE: drilling ring includes hollow body with cuttings-removing grooves and cutting teeth whose blades have front surface, back surface and lateral surfaces forming additional back angles. In order to provide possibility of drilling in any direction, blades are formed at both sides of each cutting tooth and they have common back and lateral surfaces.
EFFECT: possibility for drilling in any direction.
7 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ANNULAR REVERSING DRILL TOOL | 2008 |
|
RU2377101C1 |
| ANNULAR DRILL | 2011 |
|
RU2460613C1 |
| REVERSING DRILL | 2001 |
|
RU2214318C2 |
| FACE MILLING CUTTER | 2005 |
|
RU2288813C1 |
| COMBINED AXIAL TOOL | 2010 |
|
RU2418656C1 |
| SLABBING CUTTER | 2011 |
|
RU2460615C1 |
| SAW BLADE | 2007 |
|
RU2343047C1 |
| MULTIFUNCTION AXIAL TOOL | 2008 |
|
RU2364478C1 |
| REVERSIBLE SCREWING TAP | 2007 |
|
RU2332284C1 |
| CYLINDRICAL MILLING CUTTER | 2004 |
|
RU2261157C1 |
