How to Change a Drill Bit


There are many kinds of drills with many different sizes, configurations, cordless and corded abilities available. Most drills use a key chuck system to loosen and tighten the drill bit. Some drills come with a keyless chuck system, but essentially the keyless and key chuck system do the same job. Regardless of the chuck system, changing the drill bit can be accomplished in just a few moments.

Things You'll Need

  • Drill bit
  • Chuck key
  • Insert the nub of the chuck key into the hole on the side of the drill chuck. Be sure you have the correct chuck key for your drill.

  • Rotate the chuck key to the left to loosen the drill chuck. You may have to use a little force to rotate the chuck key. Do not use a lot of force or you will strip the chuck key and damaged the jaws that are holding the drill bit.

  • Remove the drill bit by pulling it out. Replace with a new drill bit. Insert the chuck key into the drill chuck and rotate the key to the right to tighten the drill bit in place.

Tips & Warnings

  • Always use the correct size chuck key.

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  • Photo Credit Electric drill with a drill on a white background image by terex from
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