Hey group, one of the abus locks that locks the change drawer in one of our fragramatics vacs has a broken key in it from the previous owner. We would like to get that out so we can start using the coin drawer instead of the bucket we have in there now. We have tried a cheap key extractor with no luck. What's the best way to remove the key? Other issue is that we don't even know if it is the same key as the other locks if we do get the key out. Any ideas for removal of key and lock. It's an Abus disc type lock