| 摘要 |
The invention concerns a lapping disk for oscillation grinding-in, comprising a metal body, characterised in that on the body front plane (1), the operating plane (3) is located in the shape of a varied-width ring, whereas the symmetry axis of the operating plane (3) external circumference is eccentric to the body (1) axis, whereas in the operating plane (3), at least three passages (4) and at least three blind apertures (5) are made interconnected by means of ducts (6), whereas the passages (4) are located near the of the operating plane internal circumference (3), and the blind apertures (5) are located near the external circumference of the working plane (3), and they are not in line in relation to the passages (4).<IMAGE>
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