enter image description here

Like in the picture. It's doing a great job (floorboards and skirting boards) but it keeps working itself out of the drill - I can see it creeping out gradually, and after about a minute of use it falls off. I've got the chuck as tight as I can get it.

It's actually worn away the spindle bit that goes in the drill, too, presumably it is constantly slipping inside the drill.

I'm using a very heavy duty sandpaper grade on it - 40 grit - for the first pass to take all the crap off. Could that be part of the problem?

Greatful for any advice.... cheers


1 Answer 1


Your Drill Chuck is actually the problem here.

You can try a few different things.

  • Buy a new chuck for that drill.
  • Buy a new high quality drill.
  • Since your spindle is damaged already, you might want to put a groove in it for your chuck to bite into it.

I have no relation or affiliation with any of the following - I am supplying the links so you can see some different ways to get new chucks.

In No particular order of quality, usefulness or reputation; Links for Replacement Chucks Follow:


Jacobs Chucks

At Amazon


  • 1
    One additional thought. Use less pressure when sanding. That's a big diameter drum and the sandpaper has a lot of friction. High sanding pressure involves some heavy forces on the spindle.
    – fixer1234
    May 20, 2017 at 22:26
  • Thanks ken. The drill is old and the chuck is quite stiff. I'd been thinking about getting an SDS drill for extra power and a non slip bit but haven't been able to work it into our limited household budget! May 21, 2017 at 9:06
  • @fixer1234 I think there is too much torque like you say, I tried it with my battery drill/screwdriver, which has an auto cutoff and it kept stopping. I'll try it with a lighter grit and less pressure and more patience! Cheers May 21, 2017 at 9:09
  • 1
    @MaxWilliams, bits like spade bits, which need a lot more torque than a regular drill bit, often don't have a round spindle. They have flatted sides for the chuck jaws to grab. That would be easy to replicate, and is likely to be enough. Try that before replacing the chuck.
    – fixer1234
    May 21, 2017 at 10:15
  • 1
    BTW the battery-powered drill/screwdriver has been doing a great job, not coming loose at all, though it churns through the battery like nobody's business. So i think the problem is with my old drill. May 23, 2017 at 8:43

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.