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A&K SVD (pics added)

6315 Views 28 Replies 10 Participants Last post by  ronin677
I broke down my A&K SVD last night and found the hop up adjustment grub screw is stuck. The 1.5mm hex head on it has stripped (so the allen bolt just spins) and I can't get the little blighter out.
I reckon the only solution is to drill it out and tap the hole for a larger grub screw.

Here is my question-
The hole is 3mm (I think), do I use a 3mm drill bit and a 4mm tap or do I need to use a 4mm bit and a 4mm tap?
I will be using a hand drill and whatever set of tap and dies I can find on the net for cheap.
OR
Are both my suggestions totally wrong? If this is the case, lets hear from the experts please.
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Put hot wax in the head and stick your allen key into that. Let that set then gently unscrew it. If its not cross threaded or too too tight it should come out. I had to do it (wax thing) a couple of times to get mine out. Hope this helps.
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