Indexable both sides have a horizontal abutment surface which projects - negative cutting insert and cutting tools .

摘要

Indexable double-sided - negative cutting insert (14), indexing axis (A), the end faces at the two opposite side (36), a peripheral lateral surface extending therebetween (38), the end face (36 ) and including a side cutting edge (46) on the other side which is formed between the peripheral lateral surface (38). Median plane (P) is positioned in the middle between the end face (36) and passes around the lateral surface (38) and is perpendicular to the indexing axis (A). Peripheral lateral surface (38) also in the plan view of which end face (36), at least one protrusion extending outwardly with respect to the indexing axis (A) and (54). Protrusion (54) comprises two lateral abutment surfaces that converge towards the median plane (P) in the outward direction (60). And passes the lateral edges (46) and also at least one protrusion on both opposite sides of the (54), in each cross section perpendicular to the median plane (P), any portion of the peripheral surface (38), the opposite not inside the imaginary line (LI) for connecting the side edges on the side (46). .