Brand new DeWalt DCD999 hammer drill had to go back to the store and exchanged for another one. This is the 2nd one having the exact same issue as the first. After drilling only like 3-4 holes, the chuck won't loosen or tighten, makes a clicking noise when it's not supposed to, and won't turn counterclockwise. Ended up exchanging it also and now trying the 3rd one.

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