I used to carry a lot more than I do now, realized I was never going to use a lot of it on MY boat.
I now carry only tools that fit MY boat. Only so many sized sockets needed so I carry those in deep and shallow, only 6 point, same goes for box end wrenches.
Takes a bit of time to go through everything to check sizes but I find it worth it.
Of course I carry some stuff I hope I never use, mostly emergency
tools, But my basic tool kit is tailored to my boat.
Saved a ton of weight not carrying things like an entire 1/2" drive socket set when the only nut that needs something that size is the keelbolts on my boat.
Tools get heavey fast when you think about the weight of wrecking bars, pipe wrenches, 4 pound hammers etc.
I realized the weight of even my stripped down tool kit when I had to carry it all down the ladder last fall instead of taking it off when I was still in the water
One thing I may add now that batteries are better is a cordless impact gun, couple guys at the marina have them, we were using them at haulout last fall, handy! And the lithium batteries lasted long enough to be usefull.