I have a Bezzera BB105 grinder and I was trying to remove the burrs to clean them. Top burrs, no problem, got all the gunk out. Bottom burr, Ive damaged one of the heads of the screws and now my screwdriver wont grip anymore!
So Ive tried looking up various solutions on what you do when this happens to screws, but was wondering, does anyone have any advice on what to do, or what NOT to do in this situation 
Also I wanted to take out the collar where the bit with the top burr screws in, so to clean the threads better. I found a part diagram here: http://bezzera.it/pdf/BB003_GB.pdf but if I am reading it correctly I need to dismantle the whole body and remove it from the bottom of the grinder?
Any, TIA for your tips/advice
So Ive tried looking up various solutions on what you do when this happens to screws, but was wondering, does anyone have any advice on what to do, or what NOT to do in this situation 
Also I wanted to take out the collar where the bit with the top burr screws in, so to clean the threads better. I found a part diagram here: http://bezzera.it/pdf/BB003_GB.pdf but if I am reading it correctly I need to dismantle the whole body and remove it from the bottom of the grinder?
Any, TIA for your tips/advice

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