PDQ Marlin Quick Change Question
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  1. #1
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    Default PDQ Marlin Quick Change Question

    I recently bought a small, old, mill, which came with an R-8 PDQ holder/adapter and a small set of tool holders. It took some searching to even find out what I have!

    My simple question is, how do I remove the tool holder that's currently in the R8 adapter and replace it with another? I'm sure it will be "quick" once I know how. PDQ Marlin's site wasn't very helpful, but their products seem very nice. It seems like it should be just a friction fit, but if so I don't have the grip strength for it.

    Can anyone enlighten me?

    Thanks in advance

    John

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    You need one of these (calipers for scale):

    pdq-hook.jpg

    I think it's a standard hook wrench (McMaster McMaster-Carr ). If you want/need more toolholders PM me, I've got a fair number spare.

  3. #3
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    Default Thanks!

    Quote Originally Posted by rke[pler View Post
    You need one of these (calipers for scale):

    pdq-hook.jpg

    I think it's a standard hook wrench (McMaster McMaster-Carr ). If you want/need more toolholders PM me, I've got a fair number spare.
    I turned out it was just a bit stuck. The wrench did come with, and I semi-accidentally discovered how the ring was threaded. The two holders I've swapped so far both need a sharp rap on the side to release from the taper. So now I know why the prior owner padded the wrench handle with a piece of old hose!

    I'll almost certainly take you up on the offer of available tool holders as I start getting organized. I'll be in touch.

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    Quote Originally Posted by JHopkins View Post
    I turned out it was just a bit stuck. The wrench did come with, and I semi-accidentally discovered how the ring was threaded. The two holders I've swapped so far both need a sharp rap on the side to release from the taper. So now I know why the prior owner padded the wrench handle with a piece of old hose!

    I'll almost certainly take you up on the offer of available tool holders as I start getting organized. I'll be in touch.
    PDQ are a precise fit, everywhere. Look for impact burrs on the edges & corners from careless handling, stone any you find. Polish out any gummy skin-scum of corrosion - gently. Adjust to suit, and they should go together or separate slick and snappy.

    Lovely bit of kit PDQ are.

  5. #5
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    Quote Originally Posted by JHopkins View Post
    I turned out it was just a bit stuck. The wrench did come with, and I semi-accidentally discovered how the ring was threaded. The two holders I've swapped so far both need a sharp rap on the side to release from the taper. So now I know why the prior owner padded the wrench handle with a piece of old hose!
    If you look closely at my wrench you'll see a flat beat into the back of it. The PDQ VS taper needs a little love tap to break it loose from the holder.

    Always leave a tool holder in the master so no one is tempted to take it for a spin. It can be a PITA to find the sweet spot later. Always clean the holder taper and the master when you're using it, even a small bit of swarf will knock it off - if the holder doesn't want to close there's likely some crud on it or the master.

    I have additional R8 masters if you find yourself needing one.


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