How Do I Change the Drill Bit in a Dewalt Adjustable Drill?


The size and type of drill bit you need varies depending on the nature of the job you wish to complete. Fortunately, adjustable drills made by companies, such as DeWALT, allow users to change drill bits quickly and safely. Even inexperienced users can change the bit in a DeWALT adjustable drill in only a few short steps.

Removing the Old Bit

  • Place the drill upright on a flat surface. You will need both hands to change the bit, so ensure that the drill is stable. If your drill has a "lock" setting for the trigger, engage the lock so that you do not accidentally activate the drill while handling the bit, as this could cause serious injury. Refer to the our operator's manual for how to engage the lock. If your drill requires a chuck key to lock or unlock the chuck, insert the key into the slot in the chuck and turn the key counterclockwise for four or five rotations. Remove the key and set it aside. The chuck is the attachment at the front of the drill into which the bit is inserted. Grab the upper portion of the chuck with one hand and the bottom portion with your other hand. While holding the lower portion of the chuck steady, turn the upper portion of the chuck counterclockwise to open the jaws of the drill. The jaws are the clamps at the tip of the chuck that hold the bit in place. Turning the chuck might require considerable force initially, but once you begin to open the jaws, you will only need to lightly turn the chuck. Open the jaws until the bit lies loosely and remove the bit.

Inserting a New Bit

  • Choose a new bit that is appropriate for the task you want to complete and open the jaws wide enough to accommodate the girth of the bit. Insert the smooth end of the bit into the jaws until the bottom of the bit makes contact with the inside portion of the base of the jaws. Gently hold the bit straight with one hand and turn the upper portion of the chuck clockwise with the other hand until the jaws firmly hold the bit. You will know the bit is secure when it sticks straight out of the jaws with no assistance. Tighten the jaws by holding the base of the chuck with one hand and firmly turning the upper portion of the chuck clockwise with the other hand. Continue until you can no longer turn the upper portion of the chuck. If your drill has a chuck key, insert the key into the slot in the chuck and turn clockwise to further secure the bit. Disengage the trigger lock and test the drill while observing all safety precautions listed in the operator's manual.

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