My battery powered DeWalt grinder lasted 30 seconds (I'm done with battery powered grinders and saws - Don't buy them!). We were down to one 4 1/2 inch grinder. I went out and bought a new DeWalt 6 inch grinder with a diamond blade for this job. I used the 4 1/2 inch grinder for the detail work and my buddy used the 6 inch grinder and did twice as much as me with the bigger machine.
By the end of the day my thumb was numb from using the grinder. The tip of my thumb remained numb for two more weeks. I was starting to worry if I had permanently lost feeling there but I recovered fine.
Later, I repainted the façade of the house and we were able to clear the complaint from code enforcement.
