A well system includes a production string adapted to extend from a wellhead to a subterranean zone. An originating arbiter of a process resource sends messages between arbiters that are received by each arbiter and then sent to a destination arbiter, if required. The presetting device also comprises a measuring device which measures the axial distance between the positioning stop surface of the tool holder and the opposing reference surface of the holder receptacle and has a measured-value indicator, the indicated distance value of which can be increased by the measured value of the overall length of the rotary tool. The cutting surfaces of the second pair of cutting members are shaped and dimensioned to cut through the sheath and individual conductor insulation without cutting the conductor. By use of the process and reagents of the invention, side-reactions leading to certain impurities that contaminate the synthesized oligonucleotides can be minimized.