Bigragu,
The original poster doesn't mind at all. Valid question, let's see where it takes us.
Thank you, Houli. The Allen sets reccomended are all known good sets. I want to add a set I’ve reccomended to others to have as a stand by set, for the “just in case” stubborn allen fasteners come about, or if you end up buying a used pcp that someone’s been into too many times, and it’s this set from Home Depot-
The tips of these allen bits have “teeth” that engage into semi rounded allen sockets, which will help pit a grip to the inside corners. I would not use these as a sole single set, but only for initial stubborn fasteners, or like I mentioned, fasteners that are starting to round off in the socket. Plus, being a Husky line of tools, they are a lifetime warranty.
From my experience the one style of EZ out I dislike are the ones where you have to pre drill the compromised socket head prior to using the remover bit. This style may have worked for others, but never for me.
The one thing I’ve learned for sure is when removing a stubborn fastener with an ez out type of tool is to pre heat it first with a micro torch. Bust loose any lock tite or vibra tite solutions first, before attempting to use an ez out. I learned the hard way in removing a thermostat housing on a power stroke when doing a maintenance. My plan was to change out all coolant hoses for new, pulley belts, and install a new T-Stat. The last bolt of the three that held the T-Stat housing busted off. No problem, I’ll use one of my many types of EZ outs
well, the worst of the worst happened, and that’s when the EZ out tip breaks snaps off while inserted into the busted fastener, and is locked in place. That mistake caused me to replace the entire water pump assembly Although not too difficult off a job to replace, it was $$ I didn’t want to spend and additional work I didn’t want to perform. From then on, heat gets applied first.
Heres a final tip. If there are certain fasteners that need removal constantly when opening up a gun(to adjust a regulator, as an example) the first thing to do once those fasteners come out is to apply anti seize to them. These are for external fasteners only, that are not a part of the HPA system.