Excavating tool cutting insert

摘要

The invention relates to a tool for breaking or excavating of hard material, such as asphalt. The tool comprises a cutting insert (11) secured to a tool body (10). For purposes maintaining the required cutting force low while ensuring that the risk is low that the cutting insert (11) will get loose the cutting insert (11) is provided with a concave portion (171) between the tip portion (12) of the cutting insert and a rear shoulder (13) thereon.