Wheel studs are obviously made of very tough hardened steel, so you WILL need an appropriate drill bit, and even the one I used burned up and dulled after less than an hour of use. … These are designed for use in a drill press because they are brittle.

Are lug nuts hardened?

Every lug nut is through-hardened and tempered, reaching the depth of hardness needed for its unsurpassed level of safety (unlike case hardening which is only a surface treatment).

Can you reuse wheel studs?

too tall. I re-use studs whenever I have to. So long as you don’t wreck the threads getting them out, they should be fine.