ERSA SR 100 solder wire dispenser - practical and flexible The ERSA solder wire dispenser is the optimal addition to the soldering workstation. It has excellent stability thanks to the heavy base plate. The SR 100 was designed so that different solder wire spools (250/500/1000 g) can be used.A conical centering nut guarantees optimal unwinding of different spools. The flexibly mounted soldering wire guide is suitable for different soldering wire diameters and allows the soldering wire to be fed quickly into the desired position without having to change the location of the ERSA SR 100. To use a second soldering wire coil, the optional ERSA 0SR101 installation kit can be easily installed. No soldering wire is included in delivery.