I can't release the bit from the chuck.

https://www.youtube.com/watch?v=pNDgV_6k12E
Reverse and Forward Mode: Try putting the drill in reverse mode and hit the trigger, then forward mode. If that doesn't work, tap the tip on the driveway but don't slam it. It should release .

Use a Wrench: First, make sure that the chuck is in the locked position. Next, use an allen wrench to loosen the set screw on the side of the chuck. Finally, unscrew the drill bit from the chuck .

Remove Chuck Collar: Use a wrench or pliers to loosen the chuck collar and remove it from the chuck. Then, use a screwdriver or other tool to remove the chuck jaws and any other components that may be blocking access to the stuck drill bit. Once these components are removed, you should be able to access the drill bit and remove it from the chuck .

I just looked at some illustrations on ebay of Porter-cable 18 volt drills and they appear to be fairly standard cordless drill/drivers fitted with fairly standard keyless chucks that you get hold of with both hands and twist in opposite directions like you are giving it a Chinese burn. The part of the chuck nearest the bit twists anti-clockwise to loosen.

If you have an SDS drill for heavier duty jobs the chuck is semi-automatic in the drill bit just needs pushing into the chuck and clicks into place but the outer part of the chuck is pulled back in order to release the bit.

get new tool

I'm assuming you have a DCD970 as DeWalt doesn't have a DC970 and the DW970 is an impact driver. The chuck on your drill is a new design that doesn't have a lock screw inside the chuck, they are put on very tight with lock-tite to hold them on. They are made to be taken off with a special chuck holder and vice jig that only service centers have. The allen wrench method used on older chucks won't work as the chuck will just loosen when you hit the allen wrench. I have on occasion removed one by doing the following: Turn the chuck fully open then secure it in a vice with the drill straight up. Holding the drill body and using the handle for leverage, turn the drill counterclockwise, as you are looking down on it, with steady, strong pressure. If the chuck breaks free it will spin off easily. If you are at all afraid you may break the handle you may have to take or send it to a service center to have it removed.

use some kind of lube like liquid wrench or wd40 and let it set for a bit. Then tap it with anything like a wrench, hammer, etc.

Hello Joey, I am assuming your chuck is jammed .Use a pair of pipe wrenches and rags to pad the jaws.Place one wrench under the back part of the chuck on left side with drill pointed at you.Put the top wrench in same direction on the front of the chuck.This should look like this _ >o_.Now tap the top pipe wrench handle with a hammer so you don't hurt your hands.I were gloves while doing this.Please let me know if you have any questions.THANK YOU for picking FixYa.com....Darryel

There are to parts to the chuck. You hold the ring at the edge of the chuck from turning, and then you turn the part after that, ccw to release.

If the chuck is too tight to get the bit out you can either put a glove on one hand grab the chuck and run the drill in the reverse direction or if that will not work use vise grips or a small pipe wrench on the chuck to loosen it but be sure to tape the pipe wrench or vise grips with a thin piece of duct tape so you don't gouge the drill chuck.

put a box end wrench 7/16 or a 3/8 over the bit. put the bit in a vise. Lightly tap the wrench with a hammer while holding the relase sleeve back. usually need 2 people. 1 to hold the drill and the sleeve and 1 to hold the wrench and hammer. try a little tranny fluid or wd40 in the chuck. don't use the painted bits. use onle the chrome ones

Hi,

the Chuck should be 2 Part.

Use 2 pair of stillsons Or pipe wrenches, Tight On the 2 Chuck Parts, Crack in opposite Directions.

Alternative, Use Wrench On Chuck Jaw, Short sharp Blow With Hammer.

Mike @ compurepair.