you seem to have left out 'go no go' gauges.
As few and far between as I'd switch out my savage barrel(308)- it's a lot cheaper for me to have Randall do it.
Consider I bought that rifle sometime around 2004 ish... (when accu trigger was new) The barrel was just removed for the first time 4 days ago by Randall to fit a brake.
This winter, I'll rebarrel, and have Randall move the brake over to the new barrel...
If I buy the wrench/vice/go-no go gauges... At this rate, it'll take at least 10 yrs or longer to pay for itself.... Save myself the hassle and just have Randall do it, and do it right, while I drink his beer.
I normally do a lot of work on my own guns- I've done a lot of mods... But the cost of all the tools to do it right, and how often it needs to be done...- Why bother?