In all honesty I own a VW and I work on Big Rigs. What that means is I know what is cheap **** and what is not. I work on the border of the rust belt and lived and moving back to pa right next to NJ.
Metric Wrenches: Gearwrench until you can get SO Flankdrive+
For all sockets,extensions,adapters, triple squares, tox, allen all impact always unless you really need that clearance (Very rare) I suggest Grey Pnuematic Brand except for universal sockets (clearance issues). Why? because I have yet to break a single one of there sockets, they are thin, they are impact and I have use a 3/8" MG325 at full power with 90+psi sustained with a 1/4" 5mm socket. You will find impacts will rarely if ever round a bolt and if it does it was rounded already, its seized, or crossthreaded.
For all bits or bit sockets: Get VIM it is what SO uses and is roughly 1/3 the price and you can also get ball torx bits/bit sockets. Most people do not even know ball torx existed.
Cordless Impact: Go with 18v+ anything less is a waste of money. I suggest looking at
real tool reviews on youtube. If I am not mistaken he is a member on here as well.
1/2" Impact: SO MG725 you can not feather an IR Titanium well otherwise I would suggest that. Also make sure to always oil your air tools with Air Tool oil and grease them if they have a grease fitting. IR does SO does not.
1/2" Breaker Bar: I break them regardless of brand. I suggest SO but, it really doesn't matter like I said I have broken every brand of them.
Screwdriver Set: These are not prybars anyone that tells you other wise hit with an actual prybar and a screwdriver ask them which hurts worse. You will hurt yourself otherwise. SO, Expert, Mayhew (Has a capped Driving End)
Multimeter: Fluke, Extech, SO
Pliers? Seriously, there are so many types of pliers you need to be way more specific. Channellock for tongue and groove / linesman / Needle Nose, Knipex for Cobras/diag side cutters, Klien for Electrical, Vice Grip originals for Vice Grips.
Oil Filter wrench: SO FWA62121A
Oil filter sockets??? I still have yet to figure out why the hell people do not use a normal socket place one hand over head of ratchet pushing down hard and turn the ratchet. It is not difficult at all. I do it all the time and we have filter caped canisters on big rigs (still plastic, still only 1/4" high hex, and a hell of a lot tighter) and I use a deep with an adapter on a long flex head wrench. Use normal sockets unless its a half size aka 32.5mm or you have clearance issues. Hell I have even had to use an impact because a TA crossthreaded the cap. Use normal sockets just keep heavy downward force on them and if you feel it start to slip stop.
I suggest highly you look at other techs toolboxes this will give you the best idea. I can almost guarentee you will find GP (Grey Pnuematic) and VIM sockets in at least one person's box. Also check your PM