Mini Bump Key Hammer

I'm now selling these on my website and they have replaceable heads!!! https://www.3dlocksport.com/products.php#!/Small-Bump-Hammer/p/155655426/category=39551008

I bought a Sparrows Bump Key Hammer. It is a great piece of equipment, however it is very large, as are most Bump Key Hammers. I wanted to make a smaller one that could be carried with me or at least in a smaller bag/case. So I designed this one!

One thing to note. Unlike a full sized Bump Key Hammer, you DO NOT fully grip the handle. You should hold the end of the handle between your pointer finger and your thumb and kind of let it "rock/wiggle" has you hit the bump key.

See a video of me using it here:
[](https://www.youtube.com/watch?v=LESs-5Q-YPQ)

I made a full size version! Check it out here: https://www.thingiverse.com/thing:2712872