Why is my DCH172 bit wobbling instead of spinning straight?

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Asked By r4nd0mUser88 On

Hey everyone! I recently picked up a DCH172 from Amazon, and I'm having a weird issue. No matter which of my six bits (Dewalt, Bosch, Milwaukee) I use, it feels like the bit is wobbling around instead of spinning straight—kind of like a blender! I posted a video to show what I'm talking about: [check it out here](https://youtube.com/shorts/XyMfVEhMfzg). I've even replaced the original unit, but the replacement does the same thing. I tried the same bits on a Milwaukee drill (not mine, but I gave it a go), and they spun just fine. Should I keep trying to exchange it until I find one that works, or is there something else I should consider? Also, could someone test it with a longer bit (at least 250mm) and see if it functions properly?

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