Does anybody know the intended use for the blue Park Tool SPA-3 spanner? What about the black one? When was the blue one discontinued or replaced by other tool in the catalog?
My researches have found out that the black one has 2.0mm-1,6mm ends and the blue helps in old headseat bicycles (french bikes).
Mtbr's 2016 Winter Biking GearReviews and Roundups
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Thread: Unknown Park Tool peg spanners