Put another one on the list of “no problem”. There are a lot of other things (safety wise) to worry about in a wood shop, grounding the DC isn’t one of them. Pus, when you make changes to the ductwork (and you will do that) it becomes a huge PITA to deal with.

"I long for the day when coke was a cola and a joint was a bad place to be" Merle Haggartd