I am surprised that a fork of lower quality would be bundled together with higher quality items, such as the Jahn tuning hammer in Jahn pro tuning set.
The K&M 168 Tuning Fork 105mm that I had recieved was inaccurate and it measured 442 Hz on the oscilloscope and to confirm this mistake I also compared the pitch to several more reliable 440 Hz pitches and the two tones together resulted in 2 beats per second.
I suggest replacing the named tuning fork with higher quality one, taking in account that someone who is willing to spend over 100EUR on a tuning hammer expects all the items in the set to be high quality.
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