Because this particular screw is reverse-threaded, you need to turn it counterclockwise instead of clockwise to tighten it. Turn the screw in the counterclockwise direction until it’s tight. Once it’s tight enough, the teeth will catch and allow the drill chuck to open.
How do you open a keyless drill chuck?
Hold the drill down firmly on a solid workbench, then insert the chuck key and hit it sharply with a mallet (turning it counterclockwise) to loosen the drill chuck from the threaded spindle. You may have to repeat this several times to loosen stubborn chucks. Unscrew the old drill chuck.
Why is my drill chuck stuck?
If the chuck is stuck open, check that the screw inside the drill chuck is fasten tight. If it is loose, it can prevent movement of the teeth. To solve this problem, insert the proper screwdriver in the drill chuck and tighten. Remember, this screw is reversed thread so turn it counter clockwise to tighten.
How do you loosen a chuck Dewalt drill?
Using a soft hammer, strike key sharply in a counterclockwise direction (when viewed from the front of the tool). This will loosen the chuck so that it can be unscrewed by hand.