Those are some nice looking rotors

Cross drilled spiral pattern and surface ground.

Holy Shit... Brake rotor cross drilling

I put my drill press to some damn good use, broke a bunch of bits, and eventually broke the drill press table mounting bolt in the process, but I got the brake rotors for the GS550 cafe bike all cross drilled and ready for surfacing. 192 1/8" pilot holes followed by drilling them all out with a 1/4" bit for final size. Tedious, annoying, but totally worth it.