JBC OB4000 - Sealing Plug for B-IRON 100 and B-IRON 500 Handles
The JBC OB4000 is a sealing plug for B-IRON 100 and B-IRON 500 handles. This plug is designed to prevent undesirable flux or particles from entering the tool.
Its usage is highly recommended for intensive applications when soldering in environments exposed to FOD or for applications where the soldering iron works close to a vertical position.