This is for the European Milwaukee batteries. All though I didn’t need this specific on, I did print it before I new it, and it is solid. the 45 degree print made it very tough. I put it through a couple of pretty violent tests to see how it would hold up, I will say, it did not break at all. I spiked it like a football, threw it across the shop, and the only piece that broke is when I stepped on it and the little ear that locks to the tool was the only thing that gave up. That’s pretty impressive in my book.