The underground mine I worked at for ~2.5yrs used a variation of this. Different brand without the inverted outer boom. The grinding wheel has carbide steel teeth and is also used in concrete breaking/crumbling. We used it for scaling the ribs (walls) of loose material, reducing sudden fall outs and making it safer to travel through the mine.
Swipe voting comments still shows reddit voting color scheme. Posts have updated to the lemmy color scheme, though. If there’s a toggle for this, I can’t find it.