Heat transfer was identical to Original Radio Shack cone tips. Magnetic Strength of Funk and Hakko Tips I've noticed that Hakko and Funk tips have a strong magnetic attraction. The tips of first-class tools were magnetically attracted by half. However, this does not affect heating rate or heat transfer, and no change in the temperature set point at the soldering station is required between the three different brands of tips tested. I'm an electronics engineer and very picky about my tools and power. This is good advice, not low quality.
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