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These letters stand for Basic and Technical The real differences are: B's are lighter, relatively cheap and not recommended for technical climbing. They are considered general mountaineering axe...
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#1: Attribution notice removed
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System
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2020-05-27T11:08:41Z (over 4 years ago)
Source: https://outdoors.stackexchange.com/a/3617 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/