Two stuck chucks! One drill I've had for about two years and it's stuck “open”. I went to Lowe's two months back and bought the second one as a replacement until I
DeWalt DCF887B Type 3 Spring Replacement - iFixit Repair Guide
DeWALT IMPACT DRIVER (CHUCK REPAIR) - YouTube
New Dewalt 20V Max Brushless Impact Driver w/ 3 Speeds and Normal Chuck