JBC's cartridges offer excellent heat transfer, great durability and instantaneous heating up. By using the sleep & hibernation, tip life lasts up to 5 times longer.
C120-012: This is the same as the C120004 cartridge but it has a larger tinned surface (5mm lenght).
C245-136: This is a special cartridge for desoldering micro stick switches (e.g. mobile repairs). C245-748: This is the bent version of the C245-747 cartridge, which has a bevelled tip. Its geometry enables you to reach easily awkward components where access is difficult.
C245-749: This cartridge is very similar to the C245-748 but it has a slight difference: the bevelled tip is designed so that you use the top of the tinned area.