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The Grindstone is a precision-engineered edge training platform designed to meet the demands of climbers across the performance spectrum.
It features a comprehensive progression of edge depths paired with Tension's signature edge radius pro...
Reviews
4.9
17 ratings
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The Grindstone is a pragmatic work of art.
The Grindstone is so good - a work of art while also being an amazing, pragmatic training tool. I love the rounded jug on the top of the board. Really comfortable rounded edges at a variety of practical depths. Also really like the deep, middle pocket/edge for working into 1-armed hangs. Favorite board of all (and I am a dork that collects hangboards).
J
Johnny · March 29, 2026
Best hang board out there. Holds are noticeably better than the beastmaker
