"Nuts" or "chocks" are generic terms referring to a wide variety of tapered metal chunks, threaded on strong wires, which climbers wedge into cracks for protection. The name "nut" originates from the 1950's & 60's, when British climbers looking for safer ways to climb began wedging machine nuts in cracks to create artificial chockstones with which to sling protection. Eventually, they began drilling out the nuts so they could sling and carry them along as permanent, multi-use tools... and thus, the climbing "rack" was born.
Palisade Decision Tools 60 Crack
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