How to replace chuck for black & decker kd355cre

Insert the short end of a 1/4" or larger hex Allen wrench into the chuck and tighten. Facing the tool strike the long end of the hex wrench sharply counter clockwise as it is a standard right hand thread. This will loosen the chuck so that it may be unscrewed by hand.
Oct 12, 2022

How do I remove the chuck on my drill? - BLACK+DECKER

..

Open the chuck as wide as it will open and look inside to see what type of screw/bolt it uses then using the correct tool insert it into the chuck and undo the bolt/screw, usually it will have a left hand thread so to unscrew it needs to be rotated in a clockwise directions, hold the chuck tightly but dont use excessive force if this does not work then try unscrewing it in the opposite direction, at all times be firm but like I mentioned earlier dont use excessive force.

if you took it apart to change the chuck you might have disconnected some wire id check that first

Hi,

Yes, they are an inferior product. However you can replace the B & D chuck with a Jacobs chuck that will hold up and last for a long time!

Jacobs Chuck

heatman101

In Black and Decker drills when the drill stops turning the chuck spindle locks automatically. All you have to do is grip the outer sleeve of the chuck and turn it anti clockwise to open it. Turn it clockwise to close it. When you press the trigger to start drilling the spindle unlocks automatically again.

You need to open the chuck and remove the bolt from the bottom of it[usually a #2 phillips].The next step is to insert a 5/16 allen wrench into the chuck and tighten the chuck.Hold the drill with the chuck facing away from you then strike the allen wrench with a hammer on the right side[so it goes down] and now you will be able to remove it by hand,good luck.

put some oil in the chuck and see if you can free it up buy turning it back and forth let it set with the oil for a day or so to let the oil soak in.

remove the chuck retaining screw LH thread, and then find a bent handle allen wrench about the chuck capacity and insert the shorter piece in the jaws and tighten, Shift the tool to the low position (if it has one) and the selector to drill only (if it has one) position the chuck on a block of wood at about a 30 degree angle so you can strike it counter clockwise and hit it with a hammer, it might take a couple times but it will come off. Reinstall in reverse order,

Try putting a vise grip on the bit,, and a big vise grip or chanel lock wrench on the key lock..

That should break it free..

Good luck..