For coarse grinding. Step one on normally worn stone floors - limestone, marble, terrazzo. Use with Regular Speed swing machine or auto scrubber and Twister Cleaner. Step 1 for the Standard or Intensive Twisterâ„¢ method. Twisterâ„¢ White will remove tiny scratches from the surface and leaves a silky matt, cleaned and well prepared surface for the subsequent Twisterâ„¢ steps.