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Dumbbell - Barbell Wrench
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Dumbbell wrench to tighten the plates on a dumbbell or barbell.
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Updated at source:
Model information
- Source
- Printables
- Category
- Other Sports
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
I looked around for a wrench to tighten the plates on my dumbbells and and I only found one other maker who designed such a wrench. The problem with that design is that it only fits on the locking nut every 60 degrees. I remedied that following the design of a real wrench where I doubled the engagement positions, and I also added a hole on the other end of the wrench so that you can hang in on the bar if you wish to hang it.
Dimensions
Nut outside diameter: 70mm
Nut inside diameter: 54mm
Hanging hole diameter: 30mm