Originally Posted by
MTBEERWAH
I've made shit loads, and always made them out of 304 stainless, only due to being able to get it from work, but you could still use a high carbon steel.
304 still has a small element of carbon in it, so ever so slightly, and I mean slightly, can sometimes get a faint shade of rust colour.... sometimes, but very rare.
When I made them, I didn't use a plazma to cut them, I used a 1mm cutting disc to get the basic shape, then final shaping with a grinding disc.
I didn't want eccess heat in the steel while making them.
Remember to match drill them.