3

Anyone know what bit would fit this? I have only seen the 2-prong spanner bits...

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These are indeed very rare. And old. Google image search kept showing old radio sets.

After a lengthy search I found one source that should do the trick for you.

Microtech Medium Domed Tri-Wing Wrench Tool Bit (bladehq.com)

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    Wow, thank you so much! I also did a lengthy search but came up empty. I also tried unsuccessfully to tap one out with a hammer and a screwdriver but it didn't budge, so you have really saved the day! – Rawshark Apr 21 '18 at 15:27
  • Soooo it seems the size is way off. I posted another pic in the original post above which shows how tiny the bit is compared to the screw. Any other ideas? i.stack.imgur.com/Ns1AF.jpg At this point I'm also open to the best way to remove them without a bit (drilling, tapping etc.)...? Thanks for any help! – Rawshark Apr 29 '18 at 14:58
  • Maybe vice-grips? – SDsolar Apr 29 '18 at 15:56
  • Yeah I tried that but the screw head itself is tapered so there is no way to get purchase... – Rawshark Apr 29 '18 at 18:34
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    No worries - Dremel to the rescue! Cut a slot in the head and used a flathead screwdriver. – Rawshark Apr 29 '18 at 21:23
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Here's what I eventually did to get the screws out:

  • Used a Dremel rotary tool with a metal cutting wheel on it
  • Cut slots across the head of each screw
  • Used a flathead screwdriver to remove them

Hope that helps anyone who might come across this issue in the future.

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