The present invention relates to a tool system that has a holder with a supply device for cooling lubricant, a cutting tool which has a tool cutter and a fixing part, and a tensioning device which has a tension screw by which a tension force acting upon the cutting tool can be produced for the purpose of fixing the cutting tool in position on the holder. By the positioning rod to combine to the track by the clamping sets, a bicycle can be installed upon a top of a car transversally and obliquely so as to be carried safely and conveniently. The data transmission channel loops from a transmit port to a receive port of the PLD.