Grinding Finishes

63 RMS

  • Commercial finish, grit lines will show
  • Typical finish to get the metal to correct thickness specification
  • Great for setting up for polishing after annealing and manufacturing

32 RMS

  • Mill finish, smaller and less grit lines
  • Examples include: Honeywell telescopic project
  • and propulsion bellows for the NASA’s space shuttles

16 RMS

  • Medical application finish
  • Little to no grit lines will show
  • Bio-fuel and bio-energy
  • Examples include defense aircraft such as the heat shields for F-16 fighter jets.


  • Customized, special finish that borders on the level of our polish grades.
  • Grit lines are none in most titanium, little if any on some titanium