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Several companies make really good grinder shrouds for various size grinders.
We have 4.5 and a 7 inch shrouds for our grinders. The smaller grinder has variable speed. Very helpful.
Using a Rigid vacuum with the shrouds which makes concrete grinding almost dustless.
We use diamond discs as they last longer and work faster. Really small stuff we use a stone.
Take care and wear a proper respirator.
Good luck..
Don't forget to isolate the equipment ground wire from the neutral. They cannot share the same buss, the neutral should be isolated from the can. Looks like they are not separated from the pic. If you don't separate, all exposed metal in the building could be energized (carry current) presenting a shock/fire hazard. Not sure if you are doing a double deep wall there or not, those cables must be in a raceway into the panel, they cannot be individually routed as shown (not sure if they are temporary or not).
You can also flip the panel so the breaker is on the bottom (nothing in the NEC or IRC mandates the main to be on top, it just has to be labeled). This will make it easier for terminating all the conductors.
That does look like a tricky one- To transition all those conduits into the breaker box. Can you run all the conduits into a gutter or duct and then pipe a couple 2"-3" conduits into the bottom of the breaker box?
For years I had the opposite. I'd try to explain that my business address was an office and the receptionist wasn't going to be much help to them. However, my home address had the Bobcat with pallet forks that would make unloading things much easier!One thing that gets them a lot of times is that I run my business from home, and they assume that because it's a business address then it must be in some paved industrial park or something.
Educate me: what’s STO?