Epoxy Mixing Tip Wrenches

I use the 50ml epoxy tubes and two different sizes of mixing tips, depengin on if I am planning on using a little bit of epoxy or a lot. For small jobs, I use [these little tips](https://www.aliexpress.us/item/2251832789384107.html) and for larger jobs I use [these larger tips](https://www.aliexpress.us/item/3256801592761214.html).

For the most part, I don't have an issue removing the old ones, but if I go 3-4 weeks or longer between uses, the epoxy near the interface will sometimes get just hard enough to make it difficult to remove the old tip. On the small tip it is worse, since it is so small, there is less to grab with your fingers.

So, I made these two wrenches, and they work really well. They lock onto the four flanges and allow me to remove the tips with ease - no matter how cured the epoxy may be at that interface.