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

The best Rosin Core Solder I have ever tried and tested. I shall never settle for anything less again. Mine was Made In Mexico and works as expected. The actual packaging and color, however, did not exactly match as pictured here at Amazon. But thats no big deal, of course.

Better than using DigiKey.

Best dependable quality. Some solder does not have enough flux in them and do not work well. This does.

This was a very competitive price for top-quality Kester solder. It is a little smaller diameter than my last roll, which is great for the more crowded boards that I am building these days.

Excellent product and arrived on time!!!

If youre doing electronics through-hole work, this is the solder that you want to buy. Just buy this stuff and youll be happy.

Excellet in all respects. I love it.

Its the standard for 44 Rosin Core solder. Works exactly as advertised, and the hexagonal box is handy. I recommend it.

Works well, flows good no contamination

Ive been soldering off and on since I was 8 years old, and son to an electrical engineer, and now Im one myself. So I feel qualified to review solder. Firstly, when looking to purchase solder for your electronic projects you want to make sure your solder meets the following criteria: - If using lead based you want either 63/37 or 60/40 for a nice even melt - A flux core or multiple flux cores - A quality brand (Kester, Multicore, etc) You want to avoid the Won-Hung-Lo discount brands and bite the bullet and invest into a quality solder product. Your solder joints should be shiny and silver in color. If your solder joints are dull and grey or off silver or pitted.. You are using the wrong solder. I recommend Kester or Multicore solder as they are both consistent performers and both are quality products. I also highly recommend a good temperature controlled soldering iron. It doesnt matter if its analog or digital but dont skimp on your iron either (Hakko or Weller, and not the type you plug directly into the wall). This particular thickness of solder is suitable to thru-hole and large component soldering. However if you intend to solder surface mount you will want a smaller thickness of solder anything .020 or less is more suited to SMD (or solder paste and a heat gun). You wont be disappointed with the quality of the Kester solder products.