the so called "EASYOUT SCREW EXTRACTORS" are not very good if they are of the tapered thread type, anything with a thin wall or soft like brass just get expanded tight. The best type that I have used are the square 4 corner ones that are tap'd in and bight in on the 4 corners, need to buy these from a professional tool suppler, yes they will cost good $s but they are being asked to do a real tuff job. There are allso a spline drive in type but I have not used them, anyone tryed them?
Jake.