Allen hex keys came with that printer package is too weak. I had ordered stronger allen hex keys on Amazon.

Thanks. I am now using multi-function screwdriver set because of hardened steel. It worked much better. Do not use pliers to hold nuts because nuts are too tight and could damage near components. Use nut drivers to hold nuts instead.

i had 2 allens round off. But i have a belt grinder i used to fix the problem. ground them shorter. could use a file to do the same. then i started using multi tip screwdriver i got from home depot. the tips on it were hardened steel so they worked much better. i generally think of the tools given in product assembly packaging a courtesy. and get a thanks but no thanks. remember to perform quality workmanship you need 2 things to start quality material and quality tools. skills come with repetition of use of either of these

They are really not the best ones. 😉

I think owning good tools is one of those things on my list I should buy in the next couple of weeks...

Easy to wear off when attempted to turn screws because nuts are too tight.