Robust metal tool for processing KR cable ties. KR cable ties are tightened, closed and cut off round. The pulling force is determined by the person carrying out the work. The front plate can be replaced for band widths of 6 and 8 mm. The KR6/8 processing tool mechanically presses the glass fiber reinforced locking pin of the KR cable ties into the band. This plastic deformation of the plastic (deep drawing) creates a firm connection with high holding force. In combination with KR cable ties, this system offers high vibration resistance. An important reason for customers in rail vehicle construction or the automotive industry to prefer this first-class system solution to a solution with conventional cable ties. The KR6/8 tool is used primarily in the automotive industry and rail vehicle construction.