Rotozip repair - stuck button, broken bit, can't get drill bit out

I broke a drill bit and I could not get the collet to loosen back up. The set button was not keeping the shaft from turning so I couldn't loosen it up to remove the broken drill bit. This video shows you how to take apart the Rotozip and fix the broken button. I noticed later that I did not mention the little spring that actually holds the wrench inside the handle. If your wrench falls out then you are missing that spring or it is broken.