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

worked fine for soldering to add mounting headers to Sparcfun XBee breakout boards. Wanted even smaller diameter but this worked OK.

This solder smokes more than any other solder I have ever used in over 20 years, even for its size. Works well otherwise, wish I had bought a little thicker but that is my fault.

Was dubious of the 63/37 alloy (having grown up on 60/40) and the thin wire until using it. Flowed well and the thin wire required less heat. This is my new go to.

Wets surfaces well, flows nicely, generous flux. Its Kester just as expected

nice smooth solder joints.

Best solder ever. Really no need to buy anything else. Been soldering mostly vintage electronics and guitars. Have used various brands, from Chinese well-reviewed soldertin to suggestions from local electronics store, but nothing came even close to this quality. Always a perfect shiny joint and dries immediately without plastic phase, so well worth the extra cost over the 60/40 version

Like this product ; works well to product shiny joints.

On the stand it stands perfectly

Lots of solder for a great price. Im glad I found this product.

great solder made in the USA