Having a little trouble understanding the exact situation but it sounds like one of the screws holding hinges on is stuck and the phillips screw head is stripped. If the screws were 316 stainless steel, that stuff work hardens and can be very difficult to drill. You want to keep your drill speeds slow and be sure you have a sharp bit.
With these extractor bits you first drill a little with the drill bit end in reverse, then turn the bit around in the drill and use the extractor end in reverse. Keep your drill speed slow and don't over torque or the extractor may snap off. When drilling, specially stainless don't let your drill bit get hot, you'll loose the temper of the bits tip and it won't cut after that.
Stainless steel, specially the 316 variety is very hard to work with. But these are rated for it.
I've had a lot of success with these Sears Craftsman screw extractors: Model#720SR
http://www.sears.com/craftsman-7-pc-drill-out-screw-out-power-extractors/p-00952157000P
I included a picture here: Should be some Sears extractor bits, might not stay attached.
They drill and extract in reverse. The smaller ones do small screws pretty well. The drill end just makes a perfect landing spot for the extractor end. Doesn't take much drilling for them to grip.
Steve
I am making some builtin cabinets. I started putting on 3 1/2" Gatehouse brass door hinges on. One was not right so I started to back out I had a very hard time getting 3 of them out. One would not come out at all and is still in the wood. The reason they were hard or would not come out is because they were defective. The Phillips screwdriver it would only go in no more than 1/16". I looked at the screw heads and it looks like the notches are filled with glue and the glue hardened so I could not grip into the heads. I am not saying it is glue but i could not get the screw bits into the heads. I tried to drill the last one out and broke a titanium bit.. I used a brand new bit and drilled and drilled and drilled for at least 10 minutes and I may be in 1/8"/ I am using a Milwaukee 1/2" drill and I have used it on steel before. This is brass so I thought it would be easier to drill out. I also used an Alden screw extractor a nd the end just spins in the hole. Does anyone have any ideas on how to get it out?
Thanks,GB
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