Husband is out of town so how do you change the drill bit on the porter cable keyless chuck drill?

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.

Watch this video.. here is link Drill Driver 101 How to Use Keyless Chuck

Keyless chucks work one of two ways
1: Simply turn the chuck by hand to loosen or tighten drill bit, once it grips the drill bit you will not be able to turn it anymore
2: Some keyless chucks operate by pulling the chuck back towards the body of the drill, placing the drill bit in and then releasing the chuck back to its original position

that depends on whether or not you have a keyed or keyless chuck. if you have a keyless chuck then you do not need another tool you must turn the chuck counter clockwise to loosen the chuck and replace the bit. if you have a keyed chuck then you will see three holes around the chuck of the drill ie the part that holds the bit. just below the holes you will see teeth spaced evenly around the drill. a chuck key allows you to put the end of the key in one of the holes and using the teeth you turn the chuck key thereby loosening the chuck and allowing you to change the bit. if you have a keyed chuck just take it to your local hardware store and they can provide you with the correct key and show you how to remove the bit. if your chuck is keyless the hold the chuck put the drill in reverse and pull the trigger use a glove to protect your hand

Grab the chuck with a pair of water pump pliers, and crank it in reverse. Hang on tight. Spray some wd 40 in the chuck before you get it spinning again.

This drill has a keyless chuck. Put your bit in the chuck and hold the collar of the chuck while pressing the trigger in the forward position. To undo the chuck do this in reverse. You can also hand tighten the keyless chuck if you prefer. I have a 1/4' adapter that I keep in my drill so I can change bits quickly.

hold outside collar on chuck firmly with your hand and reverse drill

My husband explained this, via phone ..... made it simple....... grab the silver ring area beneath the black top area where the drill bit is located. Hold the silver area firmly, while you twist the black top. You will see the release, then remove drill bit. Laymen's terms, but it worked!!

Most chucks have a tolerance the cordless drills where designed for drill bits 1/8 and larger the 3/8 chucks are a little better with the smaller bits .Check your owners manual and see if they have a min requirement listed for the bit size

hi this should be reletively easy hold the end black bit with the sivler bit holde coming out not the black bit next to the yellow case on drill you hold the black part thats at end of drill by where the bit goes into not the black bit near the trigger hope i explain this ok.
Hold this bit tight then put drill in reverse then press trigger a couple of times it might be tight but shouldnt be that tight it wont undo.
1 put in reverse
2 hold black plastic piece near where drill bit goes into
3 press trigger few times
4 this should undo it allowing you to put a bit in
make sure its in reverse else you will just tighten it up more let me know if you need further assistance ok