Doorfx
ArboristSite Operative
my knee looked freakishly similar to that (less blood) when I got a cutoff wheel (grinder included) into my left kneecap, I under estimated how much torque my new grinder has I guess, thank god it doesnt have a suicide switch
had it gone 1-2mm deeper it would have been a hospital trip for sure
funny thing is, my pants have almost zero damage from it
I did this as well when I built and installed granite countertops.