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 D25134K 800W 26mm SDS Hammer Drill with Quick Change Chuck - Ray Grahams DIY Store
Remove Chuck on DeWALT 20v MAX Brushless Drill DCD796 - HOW? - Burton Builds - YouTube
Drill Repair - Replacing the Chuck (DeWALT Part # N196034) - YouTube