So yea, I’m trying to recess my FH2, and I’m spinning it on the drill, but my sharpened screwdriver won’t cut! It bounces off! How can I cut properly?
Are you dragging it or is the blade facing the direction of rotation? At most the blade should be perpendicular to the shell, and possibly angled back from the direction of rotation. What you want to do is scrape the surface rather than cut it as you would imagine with a chisel.