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Old 31st May 2021, 12:22 pm   #10
TonyDuell
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Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 4,284
Default Re: Gents Flame Proof Clock

Try a google search for 'triangular socket set' (no quotes), it turned up a few possible tools, like the Laser 5683. No idea if that includes the right size but it might do.

I'd give those bolts a good shot of penetrating oil, and then try 'rocking' them (alternately loosening and tightening) untill they come free. I find the slidling T bar handle used with both hands is the best way to turn such bolts. You can apply a pure torque with no sideways bending motion which seems to help a lot. Once you have them out you can clean up the threads with the appropriate tap and die I guess
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