The invention discloses a tool system. The tool system comprises a first conveying device, a second conveying device and shifting and transferring devices. Each shifting and transferring device is used for shifting and transferring engineering mechanical workpieces conveyed by the first conveying device to the second conveying device and comprises a rotating support and a driving mechanism; and each rotating support comprises a first bearing portion and a second bearing portion which are connected with an included angle therebetween. The driving mechanisms are connected with the rotating supports and used for driving the rotating supports to rotate, so that when the engineering mechanical workpieces from the first conveying device are shifted and transferred, the engineering mechanical workpieces are borne on the first bearing portions firstly, and are turned into being borne on the second bearing portions after the rotating supports rotate, and therefore the engineering mechanical workpieces are transferred to the second conveying device after rotating by a reserved angle. According to the tool system, the working efficiency is effectively improved, production logistics is facilitated, and assembly line efficient production is achieved.