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Sheared-off screw head

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Tahnok:

--- Quote from: Buddabing on March 20, 2006, 07:37:32 pm ---@tahnok100:
There's a screw in the way. :) I dunno if there's a good way to drill that exactly through a screw.

--- End quote ---

Get a sharp bit and be carefull. Whether or not you can drill through a screw depends really on the diameter of the screw and how it broke off. If you can get the bit to sit into the top of the screw, it shouldn't be a problem. But then again, I'm really no expert on pins.

danny_galaga:
some really good thoughts here! when i was an auto electrician i had to deal with broken screws all the time. i can tell you this now though. you will NOT be able to drill out a screw that is small and in wood. to do that you need to centre punch it, drill it and use an 'easy out'. to punch it hard enough will probably drive the screw straight out (for better or worse) anyway. which might be an option now i think about it!  also it will be impossible to try and drill the same size as the screw. it will just scoot over to one side and into the plywood.my own initial thought was to try the cut a slot in it with the dremel. also check underneath. maybe the screw is longer than the wood is deep? then you can use vice grips and screw it straight out. a hole saw needs a pilot drill in the middle, and of course exactly in the middle of where you would want to hole saw is- the screw! i also cant see how using a drill press is going to help. unless its something im not familiar with normal drill presses are designed to sit on a bench (or on the floor) and you manouver the piece underneath it. i cant imagine how you would hold a whole playfield under it!

nostrebor:
The odds are VERY good that you will damage your playfield if you try to drill from the top. This is based on lots of experience in dealing with this scenario. If you want to completely avoid damaging the top, only approach this from the back, with non-powered tools.

Popcorrin:
If you were going to drill it out from the top I would use a left handed drill bit, put your drill in reverse, and apply very light pressure.  Hopefully the bit will grab ahold of the screw and screw it out.

krick:

--- Quote from: Popcorrin on March 21, 2006, 10:49:32 am ---If you were going to drill it out from the top I would use a left handed drill bit, put your drill in reverse, and apply very light pressure.  Hopefully the bit will grab ahold of the screw and screw it out.

--- End quote ---

They have left handed drill bits, just for this purpose.

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