Who to change the bit on a dewalt dc720. - Dewalt 18 Volt Compact Drill Kit

SOURCE: How do you remove the chuck from a dewalt dc720 if

The only way to get it off now is with a grinder and metal cutting wheel. Lock the drill body in a vice with the chuck out of the vice jaws. Wear safety goggles and do not stand or let anyone else stand in the plane of the cutting wheel while cutting, you will have lots of sparks and if the wheel breaks peices will stick into things. You have to make a judgement call but you want to cut just at the head of the stripped screw. It's a lot of steel to get there so be patient and work carefully to remove the tip of the chuck. Once the tip is cut off you may be able to grab what's left of the chuck with a vice grip or lock it in the vice and turn it off the drill. If not, you'll have to make a cut length wise in the chuck so you can split the base and remove it. Be careful not to go deep enough to cut into the anvil or back far enough to cut into the drill body and trans. After making the cut put a chisel in the cut and hit it, hard, until the chuck body splits.