Review on Titanium Cutter Stainless Metalworking Aluminum by Corey Burgess

I use them to cut lighter holes in sheet steel in my airplane project. They cut very quickly and cleanly thin steel (mostly .032 and .050), with me one of the guide drills was broken, but it was in an unfavorable position, and I probably loaded the drill from the side. I think they will work up to .100 steel, otherwise there are probably better ways to cut holes.