Regrindable cutting insert

The utility model provides a regrindable cutting blade, which can simply, conveniently and quickly measure the distance between a cutting edge and a chip breaking part, and can quickly perform regrinding while maintaining the machining precision, so that the working hours can be shortened, the cost can be saved, and the machining precision can be ensured. A regrindable cutting insert includes: a body having a cutting edge formed at a boundary between a front surface and an upper surface of the body, the cutting edge cutting a workpiece; and a chip breaking part for cutting chips. The chip breaking part is provided with a plurality of protruding parts, the protruding parts and the cutting edge are arranged on the upper surface in the machining direction in a spaced mode, the protruding parts form a plurality of rows in the machining direction, and each row is provided with at least one protruding part. Dimples are provided on the second row and the upper surface in front of the protrusions after the second row