Hex drill bit handy tool
thingiverse
This is a 1/4" hex drive bit. Also the hex hole that can be cut and pasted to your project. This handy gadget I'm thinking would be handy to prototype using my impact drill instead of building a pully, belt and separate motor for rotational projects. Use the hex bit and hole to fashion into your projects. I recommend using 100% fill for extra strength.
Download Model from thingiverse
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