A synthesis of the recent studies on particular metal bonds. This type of tool differs from all others sintered tools for it's particular cutting speed and firmness of the cut, the geometry's uniformity of the diamond crown during all the tool's life and the remarkable final life. The bead “A.S.S.” of the sintered wire is produced with a vast and various range of bond hardness and concentration of diamond, such that it's versatility is able to reach any result.