Uploaded December 2025 | Updated September 2026, 2 hours ago

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Which wrench design turns a bolt the most before slipping, or more importantly how do other designs compare to the best one? Today we test open end, flarenut, spline, 12 point and 6 point wrench designs to try and put a nail in the coffin of this debate with the use of our wrench turning robot Pushy.

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0:00 What we're testing
1:33 12-point
3:37 Rounded
4:53 Open End
5:58 Flarenut
7:21 Spline
8:48 6-point
9:46 Grade 5 (lil' softer)