Weller dx series desoldering iron nozzles weller t0051314399 a weller dx desoldering nozzle suitable for the dsx 80 and dxv 80 desoldering ironsthe nozzle uses a novel threadless fixing system whereby the nozzle is inserted into the head and is locked into place by twisting through a frac14 turn this patented feature allows the desoldering nozzle to be quickly and easily changed it also improves the thermal transfer from the desoldering head to the desoldering nozzle providing a faster