B23B 27/1618

Cutting tools of which the bits or tips {or cutting inserts} are of special material with exchangeable cutting bits {or cutting inserts}, e.g. able to be clamped {with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert characterised by having chip-breakers}