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Extract a Seitz micrometer indicator pin

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So I received the Seitz tool from ebay but one of the two index pins that are under the micrometer is stuck in its hole. They have a spring under them that pushes the pin up as the micrometer is screwed up or down.

I tried putting a drop of oil in and then a drop of liquid wrench, let sit overnight hoping the spring would pop it up but no joy. I tried heading up the outside a little with a hair dryer and then with a screwdriver turned the pin left and right a bit but nothing. the fact that I can turn the pin says it's not seized up.

I suppose the Swiss make a watch size easy-out but there must be a better way. Any ideas?

seitzmicrometerindexpin.thumb.jpg.7693733a30a7804c2fa274899ead7e1c.jpg

 

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22 minutes ago, Klassiker said:

I had a similar problem. See here: 

 

Ultrasonic, didn't think of that.  I'd be a bit concerned about the finish but pahaps 2 or 3 minutes in a water solution would not hur it.  Thanks, I may give it a try.

10 minutes ago, AndyGSi said:

Drill a small hole in it and then either use a screw extractor or wedge a taper in it to pull it out.

Ok, so I took the smallest drill bit I had and drilled down and after a bit it came out, spinning with the bit.  Thanks. I actually drilled through the top and into the cavity where the spring rests.  No big deal and I can always shop for a spare.

The only thing I think I need to do is somehow clean out the hole a bit.  It's 4mm and both pins are a bit tight in spots as well as a pusher I tried from the set, so there is corrosion or dried up oil on the cylinder walls I guess.

Any idea how to best do that?

 

AndyGSi Distinguished Member

AndyGSi

Posted
Posted

You could try a drop of oil and a piece of peg wood.

Failing that I'd look at using something like these.

https://www.amazon.co.uk/Grinding-Titanium-Chainsaw-Sharpener-Sharpening/dp/B0BGCDBCJK?crid=1LV6P7JI031AQ&dib=eyJ2IjoiMSJ9.XN6v-9_659_QjJFlkClt-V45dWgWj7uGGqGAgkWmIn15AnW1vb46We3iobjXq55f2SQ_wpKIJJhHsdx27x3jmXeK2QJqFwbeBFv8ZLvXtSZHzFJMPGQnqaZCXOXHHKe5bX7UhP9dxCeTwglFa06FkrZ89Lh1ehXYU0EXTnlcWe-gtjNtBG73nkk9k5KG8bEdbCRgc6pVNN171PnDrCo5FFEiv4Y9t7OgX_aBpB0bqhIwvLz2PStwYrc21Xu3S-k4-tTRDuztrJnQw6HL7OUQBTW54QRcIg2JUmc_V_TqRwY.XCU9FOENhvrjMIQp1dzbsR2w5YAypDyO-2KEGvjIYWk&dib_tag=se&keywords=4mm%2Bdiamond%2Bgrinding%2Bneedle&nsdOptOutParam=true&qid=1730408972&sprefix=4mm%2Bdiamond%2Bgrinding%2Bneedle%2Caps%2C71&sr=8-5&th=1

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