How do I properly maintain the soldering tip on the CMCE040?
While the tip is still hot, wipe it against the damp sponge in the sponge tray to remove debris. Keeping a clean tip is important to extend the life of the tip and will improve solder melting and flow during use. (Page 10)
From the official Craftsman CMCE040 Soldering Iron manual, page 10
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