Forming cutter

The utility model relates to the technical field of precision machining, in particular to a forming cutter for precision machining. In order to guarantee the machining quality of a work groove in a workpiece, the forming cutter comprises a cutter rest and a blade, a cutter groove used for installing the blade is formed in the positioning end of the cutter rest, a cutting edge used for machining the work groove to be machined is arranged on the outer edge of the blade, the cutting edge extends out of a groove opening of the cutter groove, and the cutter groove and the blade are arranged on the cutter rest. And the extension direction of the cutting edge is vertical to the central axis of the knife rest. When the forming cutter is used for machining a to-be-machined groove in a to-be-machined workpiece, the corresponding blade can be selected according to the width of the to-be-machined groove, machining is easy and convenient, the finish degree of a machined cutting edge can be guaranteed, machining quality is