Loosening the chuck will open the jaws that clamp onto the drill bit.
Keep your fingers on the bit and the chuck since the bit isn’t secured and could fall out.
Many drills that use a chuck key have a secure place on the drill where you can store the key. Typically you’ll see a key chuck on a power drill rather than a cordless model.
Inspect the bit once you’ve removed it. Check for damage or worn areas. If the bit is dull, you should replace it. If it’s bent or shows signs of cracking, throw it out so you won’t mistakenly use it again.
Keep your fingers on the bit and the chuck since the bit isn’t secured and could fall out.
Remove your hand from the bit and turn on the drill to test it before using it.
