a must have when doing soldering. i had never used these pens before buying this one. now i use this whenever i solder
This item is great if you want the job to be done perfectly.
This is the best flux I've ever used. Makes hand soldering of SMT parts very easy, and leaves very little residue. I usually clean up after with rubbing alcohol, and it cleans very easily. I do a lot of soldering but this pen lasts a while.
Quality product, using to repair a car amplifier.