POLISTAR, the line of flexible abrasive stars from PFERD INC. that has been developed for work on the hard-to-reach inner surfaces of bores and pipes, has just gotten even more effective with the introduction of POLISTAR-TUBE.

POLISTAR-TUBE is a multi-stage tubing system that highlights the effectiveness of POLISTAR on even more hard to reach bore and pipe interiors. To prevent corrosion on stainless steel pipes, POLISTAR-TUBE is manufactured using stainless steel rivets exclusively.


  • cleaning, fine grinding and very fine grinding of bores
  • removal of heat discoloration in stainless steel after welding
  • inlet and outlet radiusing of bores
  • light deburring
  • deburring in cross bores