| 摘要 |
A cut-off tool comprises a plate-like holder (1) and a cutting insert (2) retained by a clamping arm. The insert (2) has on its underside a V-shaped groove (12) cooperating with a ridge of analogous V-shape on the holder plate (1). The V-groove (12) has two flank surfaces (14, 14') extending at an obtuse angle to each other. The male edge similarly has two flank sides (16, 16'), each of which is broken by a break line (21, 21') so as to form two part surfaces (22, 23; 22', 23'), the part surfaces (22, 22') located closest to the central portion of the ridge enclosing an obtuse angle which is, on the one hand, greater than the corresponding obtuse angle between the outer two part surfaces (23, 23') and, on the other hand, smaller than the obtuse angle between the flank surfaces (14, 14') of the V-groove. <IMAGE> |
