A cutting insert for chip removing machining of workpieces, including at least one chip-removal surface that carries away chips, at least one side surface that is a clearance surface, and at least one cutting edge formed between the at least one chip-removal surface and the at least one side surface. The delay circuit is powered by a voltage source having a voltage. A drive belt is coupled to the drive pulley and the driven pulley such that a rotation of the drive pulley imparts a rotation of the driven pulley.