I just bought a new T-15+3. I am having problems with the drill chuck going on and off. Have to really push it on and it snaps in place. Then when I went to take it off it would not come off, so i took a small screw driver and was able to pry it off. So I tryed all the other chucks and thew all work fine, would love some help on this. Has any one else had this prob? The drill works really good except for this one prob. PLEASE HELP.