I recently bought a used drill but it came without  a key for the chuck. does anyone have any ideas for a  DIY chuck key or a
cheap replacement? THANKS!

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Usually only a couple of  dollars at any decent hardware or home building materials store. Make sure you get the right size. There are also kits to convert to a keyless chuck - one you can use your hand to tighten/loosen the chuck (I love mine)., but they cost a good bit more.
embochner (author)  Quercus austrina6 years ago
thanks for the answers everyone appreciate it

One of my drills is fitted with a keyless-chuck "adapter" which was simply a rubber ring which stretched to fit around a keyed chuck. Cheap, and while it isn't the safest thing in creation it does mostly work.
embochner (author) 6 years ago
one of my allen wrenches fits in the chuck alright so im using that for now
caarntedd6 years ago
In an emergency (can you have a drilling emergency?), place the drill in a vice or on something solid and put your knee/foot on it, (or get someone else to hold it for you). Then stick a phillips screwdriver in the round hole in the sde of the chuck, and using this as a fulcrum, use a flat screwdriver to lever the teeth and loosen/tighten the chuck.
Any DIY store will sell you a new key for very little money.