I have these bits i want to use. Is there anyway to get the to fit into the x-carve? They are loose.
don’t do it!
They maybe 6mm shaft rather than 1/4". You probably can buy a 6mm collet for your router. Take a look here -
That bit is a metal burr bit, used to remove sharp edges (grind) on sheet metal etc. Not suitable for CNC as the bit is not designed to carve.
Guess it depends on what you are trying to accomplish. Shane Bell messed with burrs cutting harden steel. Here is a link - https://discuss.inventables.com/t/using-carbide-burr-test-cut/21939/8