Tramming jig for cnc

This is a remix from https://www.thingiverse.com/thing:1688277
I edited:
Holes for 2 aliexpress indicators https://s.click.aliexpress.com/e/_ABgYGV
Hole for shank-used 12mm linear shaft https://s.click.aliexpress.com/e/_AE4Iwt
Holes for 2 25mm M3 bolt with M3xD5xL5 thread insert https://s.click.aliexpress.com/e/_9IJyit (aff. links)

First i froze shaft to shrink it and then oiled it and gently tapped into its hole
Didnt use it yet, still waiting for my cnc to arrive but it should work.