On Saturday, March 11, 2017 at 10:44:05 PM UTC-6, Jacqueline Fauria wrote:
I need to replace the chuck on my dewalt dw106 type 1 drill but the chuck is
stuck in the full open position. That's why it needs replaced. How can I get
the pieces apart if I can't tighten an Allen wrench down in it

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I have seen were the screw inside the chuck has come loose and causes the chuck to jamb. Try to tighten it first.