| 摘要 |
Each cutting insert is round with two cutting faces 4a, 4b which make a positive cutting angle delta with the faces 5a, 5b for guiding chips connecting with them and each insert also has, on its upper face and its lower face, a polygonal recess 7, in one corner of which there is engaged a pin 6 which is driven into a hole in the tool body 1. <IMAGE>
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