Cutter for machining roller bushing

The utility model relates to a cutter for processing a roller bushing, which comprises a cutter handle, a first cutter head and a second cutter head, the first cutter head and the second cutter head are sequentially arranged along the length direction of the cutter handle, and the first cutter head and the second cutter head are connected with the cutter handle. At least one of the first tool bit and the second tool bit is connected with the tool handle in a sliding mode. The first tool bit and the second tool bit are arranged on the tool handle, when two annular grooves in the outer wall of the roller bushing are machined, the roller bushing is installed on the three-jaw chuck, the three-jaw chuck drives the roller bushing to rotate, the distance between the first tool bit and the second tool bit is preset, the first tool bit and the second tool bit synchronously move towards the roller bushing, and the two annular grooves in the outer wall of the roller bushing are machined. Two annular grooves can be machi