If you cannot close the jaws onto an Allen key put the chuck key in the chuck making sure the key is not pressing on the ring gear. Remove the set screw turning it clockwise You may have to tap on the jaws then turn the key, then tap on the jaws then turn the key, until the jaws are fully retracted. Since the chuck jaws need to be fully retracted into the chuck body to remove the setscrew, take a pin punch and tap on the ends of the jaws as you turn the chuck key until the jaws are fully retracted. Do this until the jaws are fully retracted into the chuck body or flush with the face of the chuck.

If the chuck is seized place the key in the chuck, and turn the key counterclockwise as you tap on the ends of the jaws with a hammer. When the chuck is loose the chuck unscrews off the spindle easily. You may need to brace the drill on your workbench or vice if you need to hit the Allen key hard. Tap the Allen key with your hand so it spins the chuck counterclockwise, if using your hand won’t break the chucks lock on the spindle, hit the Allen key with a hammer. Quite often the chuck is so tight to the spindle you will not be able to unscrew the chuck by hand put a large Allen key or Hex key in the chuck and tighten the jaws on the Allen key. Turn the chuck counterclockwise to screw the chuck off the spindle. With the drill pointing at you turn the setscrew clockwise to screw the setscrew out of the spindle. The setscrew is inside the mouth of the chuck.

Open the chuck jaws until they are fully retracted so you can remove the setscrew. Many nonreversible drills and chucks don’t have a setscrew. Removing the chuck can be a bit of a challenge while the drill is running the chuck and setscrew are made to tighten onto the spindle, this makes them very tight to the spindle. I have an old broken drill with a good chuck I can use to make this repair all I need to do is remove the chuck from the drill. Oil and clean the chuck once in a while, they will seize up if you don’t. If you must have the tool in the chuck so tight that you need to use a tool on a keyless chuck, swap out the keyless chuck for a keyed chuck, it is easy enough.ĭon’t over tighten keyed chucks the teeth on the ring gear can break or you can strip the threads on the ring nut or the jaws. Just use your hand to tighten or close the jaws of a keyless chuck, the chuck is made for that. OK rule number one ”DO NOT USE TOOLS ON A KEYLESS CHUCK”, the plastic breaks on the plastic keyless chucks and the metal scars on the metal keyless chucks.ĭo not tighten or close the jaws of a keyless chuck with a monkey wrench, water pump pliers, or channel lock pliers, these tools will break or damage the chuck. Here are some rules to keep your chuck in good shape and the damages breaking these rules can cause. Or you just want to switch to a keyless chuck. Some drill chucks just won’t grip drill bits as small as 1/16 or 1/32 of an inch, because the flats on the jaws of the chuck make too large of a gap when the jaws are closed. Remember to use our power tool parts finder to find replacement parts for your impact drivers and other power tools.Why is replacing a drill chuck necessary most of the time the reason is neglect or abuse, but sometimes you may want to upgrade a drill. This repair takes about 10 minutes and can be a life-saver if you get a bit stuck in your drill. Then use another screwdriver or your finger to finish seating the retaining ring.Ĭonclusion And that's how you can remove or replace the chuck on your impact driver. Use a screwdriver to snap one end of the retaining ring into place. Slide the collar into place and add the spring and flat washer. With the tension removed from the bearing, you can tap the driver on your work bench to remove a broken driver bit if that's why you removed the chuck. You do not have to remove this bearing, but be careful not to lose it. There is a ball bearing in the driver's anvil.

Remove the flat washer, spring, and chuck collar. Use a pick and a small screwdriver to pry up one end of the retaining ring. You can use our DeWalt parts finder to find chuck parts for your driver. This article shows you how to remove and re-install the chuck, allowing you to replace it or get at a stuck driver bit. If your chuck is worn or jammed, then you will need to remove and replace it. You may not need to replace the entire chuck in your impact driver, but if a bit breaks off inside of the chuck, you will need to remove the chuck.

Dewalt 20v drill chuck replacement