Kester 24-6337-0027 Solder Roll, Core Size 66, 63/37 Alloy, 0.031 Diameter

Have tried a lot of solder over the past 36 year career as a professional electronic technician. As a general standard solder - not rohs, odd formulas - this is one of the BEST setting and easiest flowing solder on the market. * Known as a eutectic solder - melts lower than lead or tin by themselves - unlike 60/40 - doesnt boil the flux off so fast. * The 44 ra flux is aggressive on the joint and gets rid of the oxidation caused by heating the joint. This allows you to get on and off the joint quicker.

This is reallly really good. I made the mistake of picking up some generic cheap 63/37 Chinese solder, thinking 63/37 is just two elements, its must be all the same. That was wrong, it just simply liquefy like good solder should. This solder does. Its the good stuff, and you get sooo much that its actually cheaper than the cheap stuff.

I wish I knew about this years ago, I am 56 years old and I guess just now learning whats the best solder for electrical connections etc. Quickly melts and bonds connections. After doing some research and looking at some videos killing time saw this brand and type. This should last me years.

Best solder for electronics work! Hands down!

A nice big spool of thin rosin core solder. How do you review solder? It melts, it flows, it gets solid, it conducts. I spent an afternoon soldering up bits for a quad copter - lots of connectors, a wiring harness for power distribution, etc. This solder worked perfectly well.

Love this stuff. Better than 60/40 and the size is really fine.. great for electronics. Nice and shiny!

Been using this solder type for 50 years. EXCELLENT flow and boding. The flux is also easy to remove.

Great for soldering electronics!

I too have opted for acute lead toxicity coursing through his veins, the lead levels in my blood stream should surely put me at peak desirability by now! ( The throngs of women have yet to arrive as of now unfortunately. [still waiting ] ). But seriously now.... this is superb electronics solder! buy it you wont regret it!

very good