"Easy Out" is actually a brand name but like 'Kleenex' is used to refer to a different style of screw extractor for small screws that have a drill side, or burnisher side, that you use in a drill in reverse first and then flip them around to use the spiral extractor side, also in reverse at a very slow speed.
The spiral screw extractors in the OP are for larger screws or bolts you need to drill out a hole for them first (best to use a left-hand bit if you have one) and then use the spiral extractor in a tap handle or I prefer a tap socket on a breaker bar / ratchet. If you sent me for an 'easy out' I would not return with this style of extractor. They're totally different animals.
With either tool what is most important is that you say a short prayer first (can be as simple as 'please work') followed by the proper combination of four letter words (use all that you know) while doing the actual extracting. Do not forget this step or it will never work.