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Cleaning taps?

Discussion in 'GENERAL DISCUSSIONS' started by Keith Foor, Mar 18, 2017.

  1. Keith Foor

    Keith Foor Active Member Active Member

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    I have a ton of taps that I got from the son of a retired machinist. Honestly it looks like the guy never used the same tap twice and just kept tossing them into a bucket.
    Got taps from itty bitty 4-40 stuff all the way to 1.5 inch.
    Some are standard some are custom Like a 1 5/32 24 pitch one that is still in the plastic coating.
    Some however are surface rusted a bit and I would like to clean them up in bulk rather than one by one.
    Any ideas for bulk cleaning a bunch of taps and end mills. I got a ton of them too.
     
  2. roadie33

    roadie33 Active User H-M Supporter-Premium

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    I use Evaporust.
    I buy it by the gallon and reuse it several times.
    I've bought it from several different places.
    Harbor Freight, Home Depot and Menard's to name a few.
     
  3. Bob Korves

    Bob Korves H-M Supporter - Premium Content H-M Supporter-Premium

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    Brush loose stuff off with a stainless steel toothbrush, wash any oil or grease off with solvent, blow dry with air, soak in Evapo-Rust until the rust is gone, rinse, brush anything remaining with a nylon hand brush, rinse with hot water, blast with air to remove water, (return any that might still have rust to the Evapo-Rust), let stand until fully dry, coat with ATF using an old toothbrush to get into all the nooks and crannies. Yes, I have done several batches of over 100 each, from 2-56 up to 1-1/2" using this technique, and they come out looking and working great! Dies, too...

    Edit: Same treatment for end mills.
     
  4. randyjaco

    randyjaco Reserved Active User H-M Supporter-Premium

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    White vinegar is alot cheaper than Evaporust and performs equally well.
    Randy
     
  5. chips&more

    chips&more United States Active User Active Member

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    I would just put the taps in an oil soaked cloth bag to help stop the continuation of more rust. Then, when you need a tap, just grab the one you need and use it. The rust will come off the places where it is used. That’s all you need to worry about. If you are still concerned, then you can fine wire wheel the shank if you want to…Dave.
     

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