Model options(21 types):
300-B soldering tip, 300-3C soldering tip, 300-2B soldering tip
300-4C soldering tip, 300-K soldering tip, 300-5C soldering tip
300-SK soldering tip, 300-1.2D soldering tip, 300-I soldering tip
300-1.6D soldering tip, 300-LI soldering tip,300-2.4D soldering tip
300-H soldering tip, 300-3.2D soldering tip, 300-J soldring tip
300-4.0D soldering tip, 300-0.8C soldering tip, 300-4.2D soldering tip
300-1C soldering tip, 300-5.0D soldering tip, 300-2C soldering tip