They could if they were really stainless. But Zebra lied. They're not. It's brass coated with stainless
Not sure but I'll try a few things and let you know.
They look great Did you have to rethread the inside of the tube?
I tried them and there ok, just not for me. These little pens fit perfect in my jeans carpenter pocket. Or they also fit very nice in Metros new sheath