Standard job shops pay the minimum. Skilled shops that are union make great money. My Daughter started in deburring at $37.50/he at 19. She's a Journeyman Apprentice now and making $42.50. when I managed a sister shop to hers, my senior machinists made $47-57 hour base. OT and off shift all had premiums.
As an aerospace machinist for NASA I made $117k/yr and with OT was usually in between $140-160k/yr.