| 摘要 |
The rotary tool for producing profiles or cuts in hard fragile materials such as marble, granite, stone, glass and the like comprises at least one rotationally symmetrical body (1, 2) involving a configuration defined by the envelope of a multiplicity of circular parts (6-13) externally provided with diamond means. The circular parts are separated by grooves (20 to 25) and the configuration corresponds as a negative of profiles or cuts to be produced in the above-mentioned hard fragile materials, the arrangement being such that the production of profiles or cuts is effected jointly by abrasion on the part of the diamond means and by fragile-fracture breaking on the part of the grooves, and possible breaker inserts (30) with a metal pin which is hard or covered with industrial diamond. |
